ERIC ABRAHAMSON is a tenured full professor of management at Columbia Business School. He holds degrees from New York University (Ph.D. and M.Ph.). He is the author of Change Without Pain, Harvard Business School Press, and has contributed to The Harvard Business Review, The Sloan Management Review, and numerous other non-academic and academic journals. You can learn more about his work and browse some of his articles at this link.

Professor Abrahamson is an active consultant and instructor in corporate executive education programs around the world. Professor Abrahamson is also internationally recognized for his research on innovative techniques for managing change, organizations, and their employees.

You can email him at EA1@Columbia.edu

(Please note: He is not Eric John Abrahamson the Business Historian.)

DAVID H. FREEDMAN is the author of three other books , an Inc. Magazine contributing editor and columnist ("What's Next"), and has contributed at one time or another to many other publications, including  Newsweek ,  The Atlantic Monthly ,  The New York Times , Science , The Harvard Business Review, and Wired .  (You can learn more about his books, and browse some of articles, via this link.)

 He has occasionally taught writing at Emerson College, and has spoken to numerous executive, student, scientific and government audiences about science, technology and management issues.

You can email him at dhfreedman@gmail.com

(Please note:  he is not the Berkeley statistician, the Bible scholar, the lawyer, the newsletter writer, the racehorse owner, the blacksmith, the gag-writer, nor any of the other fine people who share the name David Freedman.)