N.L. Segal, G.E. Weisfeld, & C.C. Weisfeld (Eds.) (1997). Uniting Psychology and Biology: Integrative Perspectives on Human Development. Washington, D.C.: American Psychological Association Press.

  • Best-selling APA book

Segal, N.L. (1999/2000). Entwined Lives: Twins and What They Tell Us About Human Behavior. N.Y.: Dutton Press (hardcover) / Plume (softcover).

  • Doubleday Book Club: Special selection in the Library of Science, Natural Science, Astronomy, Nurse’s Book Society, Reader’s Subscription & Library of Speech Pathology
  • Featured alternate in the Behavioral Science Book Club

Segal, N.L. (2005/2007). Indivisible by Two: Lives of Extraordinary Twins. Cambridge, MA: Harvard University Press.

                  • (See Oskar y Jack, play by Mexican author Andrés Roemer (2011, Mexico City: Miguel Angel Porrúa;
                      premiere: September 8, 2012, Mexico City, Teatro Orientación, based in part on the essay “Oskar and Jack”
                      in this book).
 

Segal, N.L. (2011). Someone Else’s Twin: The True Story of Babies Switched at Birth Amherst, NY: Prometheus Books.

Segal, N.L. (2012). Born Together - Reared Apart: The Landmark Minnesota Twin Study. Cambridge, MA: Harvard University Press
               

                    Winner of the 2013 William James Book Award, 
                   American Psychological Association (Division1).


Segal, N.L. (2017). Twin Mythconceptions: False Beliefs, Fables, and Facts About Twins.San Diego, CA: Elsevier. 
AirTalk®_Answering_everyth~1.mp3‎ (12 MB‎)

Segal, N.L., & Montoya, Y.S. (2018). Accidental Brothers: The Story of Twins Exchanged at Birth and the Power of Nature and Nurture. New York: St. Martin’s Press. 

Segal, N.L. (2021). Deliberately Divided: Inside the Controversial Study of Twins and Triplets Adopted Apart, Lanham, MD: Rowman & Littlefield.

                  Honorable Mention: BookShelf’s Writing Contest (Non-Fiction);
                    Reader's Favorite.

Tarnoki, A.D., Tarnoki, D.L., Harris, J., & Segal, N.L. (Eds.) (2022). Twin Research for Everyone: From Biology to Health, Epigenetics, and Psychology. London: Elsevier.

Segal, N.L. The Twin Children of the Holocaust: Stolen Childhood and the Will to Survive. Boston: Cherry Orchard Books--Academic Studies Press (March 21, 2023).

Segal, N.L. Gay Fathers, Twin Sons: The Citizenship Case that Captured the WorldLanham, MD: Rowman & Littlefield (August 8, 2023).