Eliyahu M. Goldratt is best known as the father of the Theory of Constraints (TOC), a process of ongoing improvement that continuously identifies and leverages a system's constraints in order to achieve its goals. His business novel, The Goal, has been recognized as one of the bestselling business books of all time.
Efrat Goldratt-Ashlag has a PhD in Organizational Psychology and is the coauthor of The Choice. She specializes in training, developing, and building training materials to enable personal and organizational growth.
Stephen R. Thorne is a professional actor and a member of the Trinity Repertory Company in Providence, Rhode Island. He has played Hamlet, Henry V, and Tom Joad, among many other roles. Stephen has narrated over fifty audiobooks.