R.K. · Roger Kingdon · Roger Knight
| title | ISBN-13 | year of publication |
|---|---|---|
| Biggest Balloon in the World, The | 978-0-948535-00-0 | 1986 |
| Bubbliest Bath in the World, The | 978-0-948535-03-1 | 1986 |
| Fattest Sausage in the World, The | 978-0-948535-01-7 | 1986 |
| The Lettermen go to the fair | 978-0-948535-07-9 | 2005 |
| Wobbliest Jelly in the World, The | 978-0-948535-02-4 | 1986 |