Penguin Books Ltd · Piatkus Books
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| It's Hard to Make a Difference When You Can't Find Your Keys: The Seven-Step Path to Becoming Truly Organized | 978-0-14-219617-5 (0-14-219617-7) | 2004 |
| Why am I So Disorganised?: Sort Out Your Stuff | 978-0-7499-2882-7 (0-7499-2882-4) | 2009 |
| Why am I So Disorganised?: Sort Out Your Stuff | 978-0-7499-2480-5 (0-7499-2480-2) | 2005 |