G. W. · Gabi Witthaus · Geoff Woodhouse
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Retrospective Coaching Cards | 978-0-9575874-7-2 | 2015 | |
| Scrummaster Coaching Cards | 978-0-9575874-5-8 | 2015 | |
| Scrum Mastery: From Good To Great Servant-Leadership | 978-0-9575874-0-3 | 2013 | |
| The Coach's Casebook: Mastering The Twelve Traits That Trap Us | 978-0-9575874-4-1 | 2015 | Kim Morgan |