From the reviews: "'Human ear [recognition] is a new class of relatively stable biometrics,' that has drawn the attention of not only researchers, but also forensics experts, criminologists, and security experts ... . the book will be of great interest to researchers ... . I recommend reading the book as a stepping stone to further research work on human ear recognition, from the viewpoints of both researchers and forensics experts." (J. Myerson, ACM Computing Reviews, December, 2008)