The blurry line between psychology and self-help

The vast majority of the self-help industry deals with the two genres of pop psychology: practical help with everyday challenges and overcoming mental health problems.

But not all popular psychology is self-help, and not all self-help literature is based on psychology. Dale Carnegie, How To Win Friends and Influence People, was a salesman, actor and public speaking coach. Stephen Covey, The 7 Habits of Highly Effective People, was a religious educator, and M. Scott Peck, The Road Less Travelled, was a psychiatrist.