Handbook of Multibiometrics - International Series on Biometrics 6 (Hardback)

From the reviews:

"This book is intended to provide an overview of the state of the art in multibiometrics and technology. The authors are active researchers in the field, and have already published an extensive list of works closely related to this volume, giving them strong knowledge base. ... Overall, the book is easy to read and includes a significant body of background literature. ... computing professional can benefit from reading it, as the book constitutes a good example of the current research in the biometric authentication field." (Stefan Robila, Computing Reviews, January, 2007)