The Masterson Approach has evolved from 32 years of scientific inquiry, including four formal research projects, nine books, and 75 papers. this volume marks an important stage in a professional journey that has had many turnings. Clinical concern and theoretical introspection evoke a wish to share, which led to writing and teaching. The deepening of this need to build a continuing community of ideas has impelled Masterson to invite those who have learned from him to join me. This book represents their commitment and contribution to the Masterson Approach.