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 Secret is a best-selling 2006 self-help book by Rhonda Byrne, based on the earlier film of the same name. It is based on the belief of the law of attraction, which claims that thoughts can change a person's life directly.[ The book has sold 30 million copies worldwide and has been translated into 50 languages.