NAOMI L. QUENK, PhD, is a licensed clinical psychologist in independent practice in Albuquerque, New Mexico. She is the author or coauthor of numerous works on psychological type, most recently the MBTI Manual: A Guide to the Development and Use of the Myers-Briggs Type Indicator. She has been using the MBTI in her clinical practice for nearly twenty-five years. In addition to conducting research and teaching about the MBTI, she serves as a director of the Myers & Briggs Foundation.