Librarian Note: There are many authors with the name John O'Brien. This profile contains various authors. See below for disambiguated authors.

John 2^ O'Brien : Author of Leaving Las Vegas
John 3^ O'Brien : Children's Book Author & Illustrator
John 4^ O'Brien : Pseudonym of Patrick Joseph Hartigan, Poet
John 5^ O'Brien : Pioneer of Person Centered Planning
John 6^ O'Brien : Co-Founder and Editor of Review of Contemporary Fiction
John 7^ O'Brien : GR Author, Horror, Post Apocalyptic, Science Fiction
John 8^ O'Brien : GR Author, Environment
John 9^ O'Brien : John O'Brien OFM, GR Author, Religion, Christian
John 10^ O'Brien : Biography, author of At Home in the Heart of Appalachia
John 11^ O'Brien : Business, Investment
John 12^ O'Brien : Crime
John 13^ O