| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Let's Enjoy Nature: Over 500 Ideas for Activities | 978-1-85425-084-1 (1-85425-084-1) | 1994 |
| Let's Play Together: Over 300 Co-Opertive Games for Children and Adults: Over 300 Co-operative Games for Children and Adults | 978-1-85425-013-1 (1-85425-013-2) | 1989 |