Superb introductory book related to Application delivery controller methodologies.Although, this book won't deal with details involved in protocols like(TCP/UDP/IP/HTTP/FTP to name few) but provides a clean overview which helps reader to understand the functionality behind LB.Chandra,I am expecting version 2.0 to this book covering advancements in general and L7 details in particular.Strongly recommend for readers who would like to know basics behind Server Load Balancing,Global Server Load Balancing,Firewall and Cache load balancing.