Book excerpt: Advances in wireless technologies promise to revolutionize the way we conduct business. This book provides complete coverage of the enabling technologies needed to make wireless e-business effective. These include wireless security, mobile payment, location-based services, mobile data management, and RFID technologies. The authors are highly distinguished. Dr. Weidong Kou is a Chief Architect and a Senior Manager of IBM Greater China Group, and a Laureate of 2004 Friendship Award of China. Dr. Yelena Yesha is an Exceptional Research Professor in the Department of Computer Science and Electrical Engineering at the University of Maryland. This book is an ideal introduction for both self-study and taught e-business classes or commercial training.