John O'Brien has written at least 18 books. Their most popular book is Whistlers with 8 saves with an average rating of 3.25⭐.
Series
10 primary books11 released booksAuthored 100% of series
A New World is a 11-book series with 11 released primary works first released in 2010 with contributions by John O'Brien.
Series
8 primary booksAuthored 63% of series
A Shrouded World is a 8-book series with 8 released primary works first released in 2014 with contributions by Mark Tufo, John O'Brien, and John O'Brien.
Series
3 primary booksAuthored 33% of series
Tipping Point is a 3-book series with 3 released primary works first released in 2010 with contributions by Alan Dean Foster and John O'Brien.