This textbook provides an introduction to local area networks and covers the three most popular network operating systems: Microsoft Windows Servers, Novell NetWare, and Linux. The O51 model, popular network protocols, and technology and services are discussed. Hands-on lab exercises and review questions reinforce the learning of basic skills and troubleshooting practices. Local Area Networks covers the objectives in CompTIA's Network+ certification exam and is an excellent resource for test preparation.