| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2015 | 978-0-9931872-0-9 | A. Fos | Understand and be Excellent at Sex 22-39 Year Olds: Love, Sex Techniques, Emotions, Forming Lasting Relationships and Break-Ups |
| '' | 978-0-9931872-1-6 | '' | Understand and be Excellent at Sex 22-39 Year Olds: Love, Sex Techniques, Emotions, Forming Lasting Relationships and Break-Ups |