This short book, published in 1903, became soon the authors' best seller. Structured as a collection of isolated essays, Allen offers strong insights about matters like visualization, positive thinking, and the power of mind to influence our behavior and reality.

Written in a simple language, with short chapters and plenty of easy to understand metaphors, this book is a long lasting classic that will interest any person who wants to train their mind, or simply enjoy a good book on visualization and practical mental hygiene.

The app also includes an audio version of the book, which allows listening to the contents instead of or in addition to reading.