As a programmer, you are part listener, part advisor, part interpreter, and part dictator.

Ideas, Thoughts and Quotes from the book “The Pragmatic Programmer”

“One of the most significant books in my life.” –Obie Fernandez, Author, The Rails Way “Twenty years ago, the first edition of The Pragmatic Programmer completely changed the trajectory of my career. This new edition could do the same for yours.” –Mike Cohn, Author of Succeeding with Agile, Agile Estimating and Planning, and User Stories Applied “. . . filled with practical advice, both technical and professional, that will serve you and your projects well for years to come.” –Andrea Goulet, CEO, Corgibytes, Founder, LegacyCode.Rocks “. . . lightning does strike twice, and this book is proof.” –VM (Vicky) Brasseur, Director of Open Source Strategy, Juniper Networks The Pragmatic Programmer is one of those rare tech books you’ll read, re-read, and read again over the years. Whether you’re new to the field or an experienced practitioner, you’ll come away with fresh insights each and every time. Dave Thomas and Andy Hunt wrote the first edition of this influential book in 1999 to help their clients create better software and rediscover the joy of coding. These lessons have helped a generation of programmers examine the very essence of software development, independent of any particular language, framework, or methodology, and the Pragmatic philosophy has spawned hundreds of books, screencasts, and audio books, as well as thousands of careers and success stories. Now, twenty years later, this new edition re-examines what it means to be a modern programmer. Topics range from personal responsibility and career development to architectural techniques for keeping your code flexible and easy to adapt and reuse. Read this book, and you’ll learn how to: <ul> <li>Fight software rot</li> <li>Learn continuously</li> <li>Avoid the trap of duplicating knowledge</li> <li>Write flexible, dynamic, and adaptable code</li> <li>Harness the power of basic tools</li> <li>Avoid programming by coincidence</li> <li>Learn real requirements</li> <li>Solve the underlying problems of concurrent code</li> <li>Guard against security vulnerabilities</li> <li>Build teams of Pragmatic Programmers</li> <li>Take responsibility for your work and career</li> <li>Test ruthlessly and effectively, including property-based testing</li> <li>Implement the Pragmatic Starter Kit</li> <li>Delight your users</li> </ul>Written as a series of self-contained sections and filled with classic and fresh anecdotes, thoughtful examples, and interesting analogies, The Pragmatic Programmer illustrates the best approaches and major pitfalls of many different aspects of software development. Whether you’re a new coder, an experienced programmer, or a manager responsible for software projects, use these lessons daily, and you’ll quickly see improvements in personal productivity, accuracy, and job satisfaction. You’ll learn skills and develop habits and attitudes that form the foundation for long-term success in your career. You’ll become a Pragmatic Programmer. Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.

education

Learning & Education

books

Books

computerscience

Computer Science

softwareengineering

Software Engineering

David Thomas is an accomplished writer whose work has resonated with readers around the world. David Thomas has published several books that explore a range of topics, from fiction to nonfiction, and has received critical acclaim for the ability to weave compelling narratives. David Thomas's writing style is known for its depth and authenticity, and has earned quite a loyal following of readers.

David Thomas

Andrew Hunt is an accomplished writer whose work has resonated with readers around the world. Andrew Hunt has published several books that explore a range of topics, from fiction to nonfiction, and has received critical acclaim for the ability to weave compelling narratives. Andrew Hunt's writing style is known for its depth and authenticity, and has earned quite a loyal following of readers.

Andrew Hunt

The Pragmatic Programmer

More than education, more than experience, more than training, a person’s level of Resilience will determine who succeeds and who fails. That’s true in the cancer ward, it’s true in the Olympics, and it’s true in the boardroom.

Resilience is one of the great puzzles of human nature. Resilience is something you realize you have after the fact.

How do some people bounce back with vigor from daily setbacks, professional crises, or even intense personal trauma?This book reveals the key traits of those who emerge stronger from challenges, helps you train your brain to withstand the stresses of daily life, and presents an approach to an effective career reboot.This volume includes the work of:<li>Daniel Goleman<li>Jeffrey A. Sonnenfeld<li>Shawn AchorThis collection of articles includes “How Resilience Works,” by Diane Coutu; “Resilience for the Rest of Us,” by Daniel Goleman; “How to Evaluate, Manage, and Strengthen Your Resilience,” by David Kopans; “Find the Coaching in Criticism,” by Sheila Heen and Douglas Stone; “Firing Back: How Great Leaders Rebound After Career Disasters,” by Jeffrey A. Sonnenfeld and Andrew J. Ward; and “Resilience Is About How You Recharge, Not How You Endure,” by Shawn Achor and Michelle Gielan.How to be human at work. The HBR Emotional Intelligence Series features smart, essential reading on the human side of professional life from the pages of Harvard Business Review. Each book in the series offers proven research showing how our emotions impact our work lives, practical advice for managing difficult people and situations, and inspiring essays on what it means to tend to our emotional well-being at work. Uplifting and practical, these books describe the social skills that are critical for ambitious professionals to master.

Understand yourself and those around you.

psychology

Psychology

motivationandinspiration

Motivation & Inspiration

mentalhealth

Mental Health

business

Business

Harvard Business Review is an accomplished writer whose work has resonated with readers around the world. Harvard Business Review has published several books that explore a range of topics, from fiction to nonfiction, and has received critical acclaim for the ability to weave compelling narratives. Harvard Business Review's writing style is known for its depth and authenticity, and has earned quite a loyal following of readers.

Harvard Business Review

Author of Emotional Intelligence and psychologist Daniel Goleman has transformed the way the world educates children, relates to family and friends, and conducts business. The Wall Street Journal ranked him one of the 10 most influential business thinkers. Goleman’s Emotional Intelligence was on The New York Times best sellers list for a year-and-a-half. Named one of the 25 "Most Influential Business Management Books" by TIME, it has been translated into 40 languages. The Harvard Business Review called emotional intelligence (EI) “a revolutionary, paradigm-shattering idea.”  Goleman’s new book, Focus: The Hidden Driver of Excellence, argues that attention — a fundamental mental ability for success — has come under siege.

Daniel Goleman

Shawn Achor is an American educator, author, and speaker known for his advocacy of positive psychology. He is best known for his research reversing the formula of success leading to happiness—his research shows that happiness in fact leads to success. Achor spent 12 years studying what makes people happy at Harvard University. He later authored The Happiness Advantage and founded the Institute of Positive Research and GoodThinkInc. His TEDx talk "The Happy Secret to Better Work" is one of the 20-most viewed TED talks.

Shawn Achor

Jeffrey A. Sonnenfeld

Resilience (HBR Emotional Intelligence Series)

Facts are stubborn things, but statistics are pliable.

Simpson's Paradox, also known as the Yule-Simpson effect, is a statistical phenomenon in which a trend that appears in several groups of data eventually disappears or overturns when the groups are combined.

What is Simpson’s Paradox?

With Simpson's paradox at hand, decision-making can be hard. But understanding and identifying this paradox is important for interpreting the data clearly.

Why Simpson's Paradox?

Let us assume that we are observing several groups of data and we establish a relationship or correlation between them.According to Simpson's Paradox, when we combine all the groups together and look at the aggregate form of the data, the correlation that we noticed may reverse itself!

Diving into Paradox!

Simpson's paradox occurs when there are variables that split data into multiple separate distributions. This hidden variable is referred to as the Lurking variable.

Why Simpson's Paradox Occurs?

One of the most famous examples of Simpson's paradox is, admission to graduate school at US Berkeley in 1973. Due to this turmoil UC Berkeley Almost Got Sued For Sex Discrimination! When we look at the overall Admissions, men are most likely to get accepted than women.Out of 8442 male applicants, 44% (about 3714) got accepted. whereas 31% (approximately 1339) of 4321 female applicants got accepted.

Realtime Example of Simpson's Paradox

However, when overall admissions are divided into department-wise admissions, women are more likely to be admitted than men.Out of the 6 departments 4 of the departments accepted women more than men.

Example Continued...

The reason behind this uncertainty was that we ignored the below point.Compared to men, more women applied to departments that were harder to get into.

Lurking Variable!!!

To avoid Simpson's Paradox, which leads us to two different interpretations of the same data,we need to analyse the data either by splitting it into groups or by aggregating it together.

How to Resolve this Paradox? 

📘 Statistics can be deceiving at times. Now we'll look at such case known as Simpson's paradox.

artificialintelligence

Artificial Intelligence

What is Simpson's Paradox

In an unfamiliar culture, it is wise to offer no innovations, no suggestions, or lessons.

NEW YORK TIMES BESTSELLER • Maya Angelou shares her path to living well and with meaning in this absorbing book of personal essays. Dedicated to the daughter she never had but sees all around her, Letter to My Daughter transcends genres and categories: guidebook, memoir, poetry, and pure delight. Here in short spellbinding essays are glimpses of the tumultuous life that led Angelou to an exalted place in American letters and taught her lessons in compassion and fortitude: how she was brought up by her indomitable grandmother in segregated Arkansas, taken in at thirteen by her more worldly and less religious mother, and grew to be an awkward, six-foot-tall teenager whose first experience of loveless sex paradoxically left her with her greatest gift, a son. Whether she is recalling such lost friends as Coretta Scott King and Ossie Davis, extolling honesty, decrying vulgarity, explaining why becoming a Christian is a “lifelong endeavor,” or simply singing the praises of a meal of red rice–Maya Angelou writes from the heart to millions of women she considers her extended family. Like the rest of her remarkable work, Letter to My Daughter entertains and teaches; it is a book to cherish, savor, re-read, and share. “I gave birth to one child, a son, but I have thousands of daughters. You are Black and White, Jewish and Muslim, Asian, Spanish speaking, Native Americans and Aleut. You are fat and thin and pretty and plain, gay and straight, educated and unlettered, and I am speaking to you all. Here is my offering to you.”—from Letter to My Daughter

creativity

Creativity

NEW YORK TIMES BESTSELLER • Maya Angelou shares her path to living well and with meaning in this absorbing book of personal essays.   Dedicated to the daughter she never had but sees all around her, Letter to My Daughter transcends genres and categories: guidebook, memoir, poetry, and pure delight. Here in short spellbinding essays are glimpses of the tumultuous life that led Angelou to an exalted place in American letters and taught her lessons in compassion and fortitude: how she was brought up by her indomitable grandmother in segregated Arkansas, taken in at thirteen by her more worldly and less religious mother, and grew to be an awkward, six-foot-tall teenager whose first experience of loveless sex paradoxically left her with her greatest gift, a son. Whether she is recalling such lost friends as Coretta Scott King and Ossie Davis, extolling honesty, decrying vulgarity, explaining why becoming a Christian is a “lifelong endeavor,” or simply singing the praises of a meal of red rice–Maya Angelou writes from the heart to millions of women she considers her extended family. Like the rest of her remarkable work, Letter to My Daughter entertains and teaches; it is a book to cherish, savor, re-read, and share. “I gave birth to one child, a son, but I have thousands of daughters. You are Black and White, Jewish and Muslim, Asian, Spanish speaking, Native Americans and Aleut. You are fat and thin and pretty and plain, gay and straight, educated and unlettered, and I am speaking to you all. Here is my offering to you.”—from Letter to My Daughter

Maya Angelou

Letter to My Daughter

Ordinary least squares, or linear least squares, estimates the parameters in a regression model by minimizing the sum of the squared residuals.

What is Ordinary Least Square Method?

OLS Assumptions are the Conditions that we need to consider them before performing Regression Analysis.Some OLS Assumptions are:  <ol><li>Linearity</li><li>No Endogeneity</li><li>Normality</li><li>Zero Mean of Error Terms</li><li>Homoscedasticity</li><li>No Autocorrelation</li><li>No Multicollinearity</li></ol>

Assumptions for OLS

<ul><li>A Linear Regression is Linear because the Equation is Linear.</li><li>To verify the Linearity between Independent and Dependent Variable apply Scatter plot.</li><li>If the Data points form a pattern that looks like a Straight Line then Linear Regression is Suitable.</li></ul>

1. Linearity

If the pattern doesn't looks like a Straight Line, then we need to apply<ul><li class="ql-align-justify">A Non Linear Regression or</li><li class="ql-align-justify">Exponential Transformation or</li><li class="ql-align-justify">Log Transformation.</li></ul>

Non-Linear Pattern

<ul><li>Technically, Endogeneity occurs when a predictor variable (x) in a regression model is correlated with the error term (e) in the model.</li><li>This usually occurs due to the Omitted Variable Bias (when we forget to include a relevant variable in the Model).</li><li>As the thing that we don’t explain with our model goes into the error, the error would be correlated to the variable that we have omitted.</li><li>Omitted Variable Bias is hard to find. When in doubt, include the Variable in the model and try it yourself. </li></ul>

2. No Endogeneity

<ul><li>We need to consider that our Error Term is normally distributed.</li><li>We only need Normal Distribution while making Statistical Inferences.</li><li>T-tests and F-tests work because we have assumed normality.</li><li>If Error Term isn't normally distributed then we can use Central Limit Theorem.</li></ul>

3. Normality of Error Terms

<ul><li>If the Mean of the Error Terms is not expected to be zero then the line is not the Best fitting one.</li><li>Having an Intercept Solves the problem. </li></ul>

4. Zero Mean of Error Terms

<ul><li>Homoscedasticity means to have “Equal Variance”. The error terms should have equal variance with one another.</li><li>When the error terms don’t have “Equal Variance”, then Heteroscedasticity happens.</li></ul>

5. Homoscedasticity

In order to prevent Heteroscedasticity, we need to<ul><li>Look for Omitted Variable Bias.</li><li>Look for Outliers.</li><li>Apply log Transformation.</li></ul>

Heteroscedasticity 

<ul><li>Autocorrelation is a mathematical representation of the degree of similarity between a given time series and a lagged version of itself over successive time intervals.</li><li>It is similar to the Correlation between two different Time Series but Autocorrelation uses same time series twice.</li><li>One is Original form and other one is Lagged version of Original form.</li></ul>

6. No Autocorrelation 

To detect autocorrelation<ul><li>Plot all points and check for patterns or</li><li>Use Durbin - Watson test.</li></ul> There is no remedy for Autocorrelation. Instead of linear regression, we can use<ul><li>Autoregressive Models.</li><li>Moving Average Models.</li></ul>

Autocorrelation Detection

<ul><li>We observe Multicollinearity when two or more Independent Variables in a model are “Highly Correlated”.</li><li>Correlation could be Positive (or) Negative.</li><li>This will lead result in less reliable predictions.</li><li>Multicollinearity can be noticed easily by finding the correlation between each two pairs of Independent Variables.</li></ul>

7. No Multicollinearity

To fix Multicollinearity: <ul><li>If the Dataset is small, we can drop one independent variable. Or we can Transform them into One Variable (Eg. Average of two Variables)</li><li>If the Dataset is large, we will use Ridge and Lasso Regression.</li></ul>

Fixing Multicollinearity

These are some of the Assumptions to be pondered while Applying Ordinary Least Square Method and Performing Regression Analysis.

OLS (Ordinary Least Square) Assumptions

नास्ति काम समो व्याधिर्नासि्त मोहसमो रिपु:।नास्ति कोप समो वह्रि: नास्ति ज्ञानात्परें सुखम्।।

No Disease is More Deadly than Sexual Desire.No Enemy is more Dangerous than Infatuation. No Fire is more Scorching than the Fire of Wrath.No Happiness is Better than the Self-knowledge.

Meaning Of Above Sutra

One of the greatest figures of wisdom and knowledge in the Indian history is Chanakya. Chanakya is regarded as a great thinker and diplomat in India who is traditionally identified as Kautilya or Vishnu Gupta. Originally a professor of economics and political science at the ancient Takshashila University, Chanakya managed the first Maurya Emperor Chandragupta's rise to power at a young age. Instead of acquiring the seat of kingdom for himself, he crowned Chandragupta Maurya as the emperor and served as his chief advisor. Chanakya Neeti is a treatise on the ideal way of life, and shows Chanakya's deep study of the Indian way of life. These practical and powerful strategies provide a path to live an orderly and planned life. If these strategies are followed in any sphere of life, victory is certain. Chanakya also developed Neeti-Sutras (aphorisms ? pithy sentences) that tell people how they should behave. Chanakya used these sutras to groom Chandragupta and other selected disciples in the art of ruling a kingdom. But these sutras are also relevant in this modern age and are very useful for us. For the first time, Chanakya Neeti and Chanakya Sutras are compiled in this book to make Chanakya's invaluable wisdom easily available to the common readers. This book presents Chanakya's powerful strategies and principles in a very lucid manner for the benefit of our valuable readers.

personaldevelopment

Personal Development

Chanakya Neeti is a book based on Chanakya, an Indian theorist, teacher, philosopher, economist and a noble mentor to the Mauryan emperors between 350 -275 BC. The book portrays about his ideologies and ideas in diverse situations, which are pertinent even to today?s? times. People follow his ideas to escape from the web of several evils to lead a happy and peaceful life. Chanakya was also known as Kautilya or Vishnu Gupta. He was prominent lecturer at the ancient Takshashila University. He was an expert of economics and political science. Besides teaching, he also advised the Mauryan kings, Chandragupta and his son Bindusara. Chanakya played a crucial role in the establishment and expansion of the Mauryan Empire. In this book, the author tells about Arthashastra, the ancient thesis about Indian Polity. The book focuses on Chanakya's detailed theories. He wrote his discoveries as to the manner people used to live their lives in ancient India. The book explains the behaviours and patterns a person should follow with different people in life. This book was published in 2002 and is available in paperback form. It comprises of Neeti Sutras in Sanskrit, which are in concise form, but are very impressive. Their translation is done in English and a bit is explained in laymen's terms too. It is available online on Amazon India. About the author: B.K. Chaturvedi is an Indian Civil Servant. He is also former Cabinet Secretary, Government of India. He was awarded the Padma Bhushan for his involvement in the field of civil services, in 2010. He belongs to the 1966 IAS batch. About the Author About the Author: B. K. Chaturvedi is a famous Indian author, who is also a journalist and translator. His works are mainly based on Hindu Gods and saints. He also focusses on historically famous Indian people. Chaturvedi's works are published both in English and Hindi. He mostly studied in Bangalore and Allahabad. Apart from this book, Chaturvedi has authored Linga Purana, Kautilya's Arthashastra and A Complete Guide To Numerology. He has also written for some programmes on TV and radio.

B. K. Chaturvedi is an accomplished writer whose work has resonated with readers around the world. B. K. Chaturvedi has published several books that explore a range of topics, from fiction to nonfiction, and has received critical acclaim for the ability to weave compelling narratives. B. K. Chaturvedi's writing style is known for its depth and authenticity, and has earned quite a loyal following of readers.

B. K. Chaturvedi

Chanakya Neeti

You learn something valuable from all of the significant events and people. but you never touch your true potential until you challenge yourself to go beyond imposed limitations.

It's important that what thoughts you are feeding into your mind because your thoughts create your belief and experiences. You have positive thoughts and you have negative ones too. Nurture your mind with positive thoughts: kindness, empathy, compassion, peace, love, joy, humility, generosity, etc. The more you feed your mind with positive thoughts, the more you can attract great things into your life.

Roy T. Bennett

The Light in the Heart

Every Deep Thinker is more afraid of being understood than being Misunderstood.

A scathing and powerful critique of philosophy, religion and science. Here Nietzsche presents us with problems and challenges that are as troubling as they are inspiring, while at the same time outlining the virtues, ideas, and practices which will characterise the philosophy of the future. Relentless, energetic, tirelessly probing, he both determines that philosophy's agenda and is himself the embodiment of the type of thought he wants to foster.

philosophy

Philosophy

Friedrich Nietzsche's Beyond Good and Evil is translated from the German by R.J. Hollingdale with an introduction by Michael Tanner in Penguin Classics. Beyond Good and Evil confirmed Nietzsche's position as the towering European philosopher of his age. The work dramatically rejects the tradition of Western thought with its notions of truth and God, good and evil. Nietzsche demonstrates that the Christian world is steeped in a false piety and infected with a 'slave morality'. With wit and energy, he turns from this critique to a philosophy that celebrates the present and demands that the individual imposes their own 'will to power' upon the world. This edition includes a commentary on the text by the translator and Michael Tanner's introduction, which explains some of the more abstract passages in Beyond Good and Evil. Frederich Nietzsche (1844-1900) became the chair of classical philology at Basel University at the age of 24 until his bad health forced him to retire in 1879. He divorced himself from society until his final collapse in 1899 when he became insane. A powerfully original thinker, Nietzsche's influence on subsequent writers, such as George Bernard Shaw, D.H. Lawrence, Thomas Mann and Jean-Paul Sartre, was considerable. If you enjoyed Beyond Good and Evil you might like Nietzsche's Thus Spoke Zarathustra, also available in Penguin Classics. 'One of the greatest books of a very great thinker' Michael Tanner

Friedrich Nietzsche

Beyond Good and Evil

Let your plans be dark and impenetrable as night. And when you move, Fall like a Thunderbolt

The Art of War is an enduring classic that holds a special place in the culture and history of East Asia. An ancient Chinese text on the philosophy and politics of warfare and military strategy, the treatise was written in 6th century B.C. by a warrior-philosopher now famous all over the world as Sun Tzu. Sun Tzu's teachings remain as relevant to leaders and strategists today as they were to rulers and military generals in ancient times. Divided into thirteen chapters and written succinctly, The Art of War is a must-read for anybody who works in a competitive environment.

"There's not a dated maxim or vague prescription in it." — Newsweek Regarded as the world's oldest military treatise, this compact volume has instructed officers and tacticians for more than 2,000 years. From its origins in China, The Art of War traveled the world to inform the strategies of Napoleon and World War II generals. More recently, it has taken on a new life as a guide to competing successfully in business, law, and sports. All of The Art of War's concepts retain their value to modern readers, from the prudence of circumventing a strong opponent and taking advantage of a weak one to the wisdom of preparedness and flexibility. Other topics include strategy, tactics, maneuvering, communications, the treatment of soldiers, and the worth of well-trained officers. History enthusiasts, business thought leaders, and anyone intrigued by competition and rivalry will appreciate this elegant edition of the classic work.

Sun Tzu (孫子; pinyin: Sūnzǐ) is a honorific title bestowed upon Sūn Wu (孫武 c. 544-496 BC), the author of The Art of War (孫子兵法), an immensely influential ancient Chinese book on military strategy. Sun Tzu believed in the use of the military sciences to effect outcomes that would result in peace.In the author's name, Sūn Wu, the character wu, meaning "military", is the same as the character in wu shu, or martial art. Sun Wu also has a courtesy name, Chang Qing (Cháng Qīng).

Sun Tzu

The Art of War

No matter how the wind howls, The mountain cannot bow to it.

Dec 27, 2013 - No matter how the wind howls, the mountain cannot bow to it

The Pragmatic Programmer

Resilience (HBR Emotional Intelligence Series)

What is Simpson's Paradox

Letter to My Daughter

OLS (Ordinary Least Square) Assumptions

Le Saì De vénu