RoseMarie Perez Foster's book is an interesting, scholarly, and comprehensive study of the issues and responsibilities, which we face as clinicians, when working with the bilingual patient. In this book she sets out to discuss some theoretical understandings of the workings of the bilingual brain and also turns her attention to the practical and technical side of treatment. This book will speak to anyone who has ever had, or now has, in treatment a patient whose native language is not English. Although not primarily a clinical case study, the book is interspersed with sensitive excerpts from Foster's clinical experience, demonstrating some of the principles