We All Came From The Same Tree - The Science of the Epsilon Program is a book in Grand Theft Auto V written by Cris Formage.
Not much is known about the book or its subject matter. It is seen on a slideshow in the Epsilon Building in Rockford Hills, Los Santos.
The book is probably a parody of Dianetics: The Modern Science of Mental Health by Scientology founder L. Ron Hubbard upon which the Epsilon Program is based.
- The cover states there have been over 10 million books printed.