The design and implementation of JSONiq is a team effort involving Dana Florescu (Oracle), Jonathan Robie (EMC), Matthias Brantner (28msec), Markos Zaharioudakis (Oracle), Till Westmann (Oracle) and myself (28msec).
This book was carefully reviewed by Matthias Brantner, Federico Cavalieri (28msec) and Paul J. Lucas (28msec).
A significant part of the introduction ("Why JSONiq?") was written by Dana Florescu.