Praise for this book:This book succeeds in its aim of providing a practically useful and theoretically sound comprehensive book on hearing aids.It makes the most complicated concepts easy to understand with excellent cross referencing.I certainly wouldn't want to be without this book and I highly recommend it to everyone with an interest in hearing aids. Pauline Smith, ENT & Audiology News Key Features: Completely revised to reflect the research and technological advances of the last decadeNew chapters on directional microphones and the latest digital signal processing strategies Extensive coverage of all aspects of open-canal, thin-tube hearing aids Practical tips, tables and procedures designed to be pinned on the walls of clinicsEach cross-referenced chapter builds on the previous chaptersHearing Aids, Second Edition, is a book within a book: Each chapter has a one-page synopsis that captures the key concepts of each topicThe material that students most need is contained in marked paragraphs that flow after each other to form a coherent thin book inside the larger book Intervening additional paragraphs add satisfying depthWritten, comprehensively referenced and extensively reviewed by leaders in the field, this book is ideal as a core graduate text as well as a standard reference for clinicians.