O'Reilly Media · Various small imprints
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Digital Transformation Game Plan: 34 Tenets for Masterfully Merging Technology and Business | 978-1-4920-5439-9 (1-4920-5439-9) | 2019 | Gary O'Brien · Guo Xiao · Mike Mason |
| Messages from Your Soul: Conversations with Dzar, Book 1 | 978-0-646-54510-3 (0-646-54510-8) | 2010 | Mary O'Brien · Gary O'Brien |
G.B. · G.O. · G. O'Brien · Gary B. · O'Brien