This book provides comprehensive coverage of the issues critical to professional practice in communication sciences. The text is multi-contributed and each chapter is written by a leading expert in the field. This is the most up-to-date text on the market, and it provides in-depth coverage of the recently updated 2005 Standards of Clinical Competence. The text is clearly organized and highly approachable for readers, and it provides a number of excellent pedagogical features such as case studies, tables and decision-trees to help reinforce the material.