The book is Impromptu Man: J.L. Moreno and the Origins of Psychodrama, Encounter Culture, and the Social Network, scheduled for publication in Fall 2014. It's called the "untold story of the creative genius behind major 20th-century movements in therapy and theater and his lasting influence."
Here's the pre-blurb for the book:
"A mystic, theater impresario, and inventor in his youth, Moreno immigrated to America in 1926, where he trained famous actors, introduced group therapy, and was a forerunner of humanistic psychology. As a social reformer he reorganized schools, prisons, and refugee camps. Moreno's methods have been adopted by improvisational theater, military organizations, educators, business leaders, and trial lawyers. His social graphics laid the groundwork for social media like Twitter and Facebook."
The younger Moreno, whose mother is Moreno's third wife Zerka T. Moreno, is an acclaimed bioethicist, and the author of several books about science and philosophy.
Read more about the book here.
Find Jonathan's web site here.