Bell Labs has been called the "crown jewel" of AT&T. Forced by the marketplace, competition, and economic conditions, the prestigious research lab is in the midst of radical change. Gehani, who was research vice president for communications software research when he left Bell Labs after 23 years, chronicles the changes, from the breakup of AT&T through the rise and fall of Lucent, Bell Labs' parent organization. Annotation ©2004 Book News, Inc., Portland, OR (booknews.com)