Taibi Kahler (born 1943)^[1] is an American author and communications consultant. He added the concepts of the Mini-script and Drivers^[2] to Transactional analysis theory.

Kahler was born June 30, 1943 in Kewanna, Indiana. He was the only child of George Kahler, a farmer, and Madelyn Kahler. His father died in combat in April, 1945 while serving in the United States Army in the European Theater, resulting in Kahler being raised by his single mother in Hammond, Indiana.  He has indicated that it was a financially poor, but loving upbringing. Kahler attended Hope College, in Holland, Michigan, before transferring to Purdue University where he graduated with B.A. in English Literature, an M.S., and a Ph.D. in Child Development and Family Life (1972).

Kahler developed the Personality Pattern Inventory (PPI). In 1977, he received the Eric Berne Memorial Scientific Award from the International Transactional Analysis Association.^[3] Kahler's targues that any population can be divided into six different personality types (denoted thinker, harmoniser, persister, rebel, imaginer, promoter) and that by modifying how we say what we say, according to the personalities of those we interact with, we can become more effective communicators.^[4]

PCM has been applied to call centre interactions.^[5][6]

• The Mastery of Management (2006), ISBN 978-0970118523
• The Process Therapy Model: The Six Personality Types with Adaptations (2008), ISBN 978-0981656502
• Transactional analysis revisited (1978), Little Rock, AR: Human Development Publications
• Process therapy in brief: the clinical application of miniscript (1979), Little Rock, Ark, Human Development Publications
• NoTAtions: A guide to TA literature (1978), with Brown, M. Dexter, Mich: Huron Valley Institute