Taking notes should not become a tedious process, but it should be made as seamless as possible.

• If you are reading a physical book, write down main ideas or questions in the margins. Try to keep it very short. If you are reading an ebook, highlight the essential parts and write a few words to add contextual information.
• If your goal is to learn or reference your notes in the future, you may want to stop at the end of each chapter and collate the ideas separately from the text. This can be done on the inside cover of the book, or on a separate index card, where you rewrite the key ideas with the corresponding page numbers.