Barbara Klein, Ed.D.

https://www.psychologytoday.com/us/blog/twin-dilemmas/202104/the-lasting-power-early-twin-attachment

https://www.psychologytoday.com/us/blog/twin-dilemmas/202103/raising-twins-be-individuals-and-trusted-friends-0

https://www.psychologytoday.com/us/blog/twin-dilemmas/202103/raising-twins-be-individuals-and-trusted-friends

https://www.psychologytoday.com/us/blog/twin-dilemmas/202102/how-can-i-have-reasonable-conversation-my-twin

By Barbara Klein, Stephen A. Hart, Jacqueline M. Martinez

https://www.routledge.com/New-Understandings-of-Twin-Relationships-From-Harmony-to-Estrangement-and/Klein-Hart-Martinez/p/book/9780367228736

https://www.psychologytoday.com/us/blog/twin-dilemmas/202012/how-important-is-it-get-along-your-twin

"New Understandings of Twin Relationships: From Harmony to Estrangement and Loneliness."
Barbara S. Klein, Stephen Hart, and Jacqueline Martinez.

“A remarkable work. In reading the manuscript, I learned of the importance and endurance of the twin relationship. I also found that twins must respond to a wider world. These life stories are compelling and inspirational. The book has opened my eyes to an essential area of human and social development.”
~John McNeil
Professor Emeritus
UCLA Graduate School of Education & Information Studies

https://www.routledge.com/New-Understandings-of-Twin-Relationships-From-Harmony-to-Estrangement-and/Klein-Hart-Martinez/p/book/9780367228736

“ ‘New Understandings of Twin Relationships’ is a marvelous book. It provides a rich portrayal of the intricate lives of twins and the unique challenges and pitfalls faced by their parents. As an academic, I found the discussion thought-provoking and fascinating. As a singleton parent of gifted twins, I found it also moving, helpful, consoling and inspiring.”
Paul Forster, Ph.D.
Professor of Philosophy
University of Ottawa

“As an academic and parent of twins, I love the combination of theory and lived experience in this book. The scholarly, evidence based approach is confidence inspiring, and, combined with the author’s lived experience of being a twin and working with twins, you know are in very good hands here. As a parent of twins who is not a twin, this book gave me a window into my twins’ lives that I didn’t have before, giving me a greater understanding of who and how they are and how they develop, and what challenges they face as twins. It also brought me face to face with and corrected my own assumptions about their lives that were not accurate. It’s a book I’ll return to more than once as I navigate parenting twins, and I highly recommend it to any parents of twins!”
Erin McCarthy, Ph.D.
Professor of Philosophy
St. Lawrence University

http://www.johannakeogh.com/

Many thanks to Johanna for her incredible work!