Book reviewed in this article:Speech Therapy: Principles and Practice: By Betty Byers BrownEarly Language: Acquisition and Intervention: By R. L. Schiefelbusch and D. Bricker.Clinical Aspects of Dysphasia: By Martin L. Albert, Harold Goodglass, Nancy A. Helm, Alan B. Rubens and Michael P. AlexanderClinical Linguistics: By David CrystalSpeech Evaluation in Psychiatry: Edited by John K. Darby Jr.Brain Function Therapy: By G. E. Powell