| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2010 | 978-0-9824038-1-5 | Aniela Gregorek ยท Jerzy Gregorek | The Happy Body: The Simple Science of Nutrition, Exercise, and Relaxation |
| 2015 | 978-0-9824038-2-2 | Aniela & Jerzy Gregorek | The Happy Body: The Simple Science of Nutrition, Exercise, and Relaxation (Black&White) |
| 2013 | 978-0-9824038-3-9 | Aniela and Jerzy Gregorek | The Happy Body Exercise Program Poster |