J.K ยท Jonni Kincher
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Psychology for Kids Vol. 1: 40 Fun Tests That Help You Learn About Yourself | 978-1-57542-283-1 (1-57542-283-2) | 2008 |
| Psychology for Kids Vol. 2: 40 Fun Experiments That Help You Learn About Others | 978-1-57542-284-8 (1-57542-284-0) | 2008 |