| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| How Love Works: How to Stay in Love as a Couple and True to Yourself Even with Kids | 978-0-7225-3935-4 | 2000 | Steve Biddulph |
| Love, Laughter and Parenting: In the Precious Years from Birth to Age Six | 978-0-7894-7182-6 | 2001 | Steve Biddulph · Shaaron Biddulph |
| The Complete Secrets of Happy Children: A Guide for Parents | 978-0-00-716174-4 | 2003 | Steve Biddulph |
| The Secret of Happy Parents: How to Stay in Love as a Couple and True to Yourself | 978-0-00-718957-1 | 2004 | " |
DK Children · HarperCollins · Thorsons