| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| A Prickly Affair: My Life with Hedgehogs | 978-1-84614-065-5 (1-84614-065-X) | 2008 |
| The Hedgehog's Dilemma: A Tale of Obsession, Nostalgia, and the World's Most Charming Mammal | 978-1-59691-477-3 (1-59691-477-7) | 2008 |