From the Foreword by Sadanand Singh, Ph.D. An Advanced Course in Communication Sciences and Disorders, Dennis C. Tanner's latest book, is a major and unique contribution to the speech and hearing literature. Written in a narrative and academic style, this book explores the field of communication sciences and disorders with a compelling plot and a happy ending. Intriguing, fascinating, but never failing to embrace the facts, the book is filled with relevant information on both rmal and disordered communication. Tanner has woven the facts into a tapestry of color and style that he calls the unified model, allowing readers to see everything important about rmal and disordered communication in one place. What I admire about Dr. Tanner is that he explores fully the connections among all aspects of rmal human communication, and the impact on the individual, family, caregiver, and the society when this connection is lost. This book is so essential to making these connections that students should read it twice; once upon embarking on their studies in the field of communication sciences and disorders, and again when nearing completion of their academic and clinical educations. The first reading of the book will undoubtedly whet their academic appetites, increase their curiosity, challenge intellectual acumen, and bring them to the decision that they need to explore this field further. The final reading will allow them to become the best consumer of all the academic and clinical kwledge and experiences they have assembled in the field of communication sciences and disorders.