A N · A. W. · A. Williams · Andrew Williams · N. Williams
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Are You Crazy?: 18 Scientific Quizzes to Test Yourself | 978-0-399-53158-3 (0-399-53158-0) | 2005 |
| How Do You Compare? 12 Simple Tests to Discover Hidden Truths About Your Personality. | 978-0-399-52951-1 (0-399-52951-9) | 2004 |
| The Truth About You: Discover Hidden Truths About Yourself - and Enhance Your Life | 978-0-09-190013-7 (0-09-190013-1) | 2004 |