Simon & Schuster Ltd - Released in 2006
The Secret was released as a film in March 2006, and later the same year as a book. The book is influenced by Wallace Wattles' 1910 book, The Science of Getting Rich, which Byrne received from her daughter during a time of personal trauma, in 2004. New York Times bestselling authors of The Passion Test, Janet Bray Attwood and Chris Attwood, are not featured in the film or the book, but arranged 36 of the 52 interviews for the film, many of which are referenced in the book.
The book served as the basis for the 2020 film The Secret: Dare to Dream.