| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Buy Ketchup in May and Fly at Noon: A Guide to the Best Time to Buy This, Do That and Go There | 978-0-06-173088-7 (0-06-173088-2) | 2009 |
| Buy Shoes on Wednesday and Tweet at 4:00: More of the Best Times to Buy This, Do That and Go There | 978-0-06-211770-0 (0-06-211770-X) | 2012 |
| Your Pinkie Is More Powerful Than Your Thumb: And 333 Other Surprising Facts That Will Make You Wealthier, Healthier and Smarter Than Everyone Else | 978-0-06-200835-0 (0-06-200835-8) | 2011 |