Best Self: Be You, Only Better — Mike Bayer

A self-help book is a book or text that is written with the primary intention to instruct its readers how to solve problems of a personal nature. They take their name from Self-Help, an 1859 best-selling book by Samuel Smiles, but are sometimes known and classified as “self-improvement” books. Self-help books moved from their position in a niche market to much wider adoption and use in the late twentieth century.

Source: Wikipedia