| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2014 | 978-0-9893464-3-6 | Joan A. Friedman | The Same but Different: How Twins Can Live, Love, and Learn to Be Individuals |
| 2018 | 978-0-9893464-5-0 | Joan A., Ph.D. Friedman | Twins in Session: Case Histories in Treating Twinship Issues |