David Faust, PhD is Professor of Psychology at the University of Rhode Island, with an affiliate appointment in the Department of Psychiatry and Human Behavior at Brown University.

Ever since its first edition in 1970, this book has led the way in demystifying the underpinnings of mental health "expertise" for attorneys and in chastening would-be experts to demonstrate rigor in their work. Working closely with Mae Ziskin, David Faust has assembled a team of experts to produce a superb 2012 6th edition. The substantial single volume truly represents a classic reborn with the most recent and digestible information from A (admissibility of expert testimony) to Z (interpreting Z-scores). No civil litigator, criminal law, or divorce attorney will want to cross-examine a mental health expert without it. No competent clinician or behavioral scientist should dare to take the witness stand without referring to it.