Provides concise, fact-filled descriptions that cover the ``nuts and bolts" of local area networks, targeting the programmer who must learn all facets of networking. Features the latest information on network protocols, bridges, routers, network management and security, E-Mail, client and fax services. Demonstrates network implementation details vital to a variety of configurations--PC to PC, PC to mini and mainframe, and LANS plus actual examples of how bridges and routers work.