| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| In The Sixties | 978-0-7502-3546-4 (0-7502-3546-2) | 2002 |
| See How They Grow: Cat | 978-0-7502-6857-8 (0-7502-6857-3) | 2012 |
| See How They Grow: Dog | 978-0-7502-6858-5 (0-7502-6858-1) | 2012 |
k.A. · K. W. · K. Walker · Kathryn Walker · W.A.