Jim Geier is an independent consultant, assisting companies with the development of wireless network products and integration of wireless networks into corporate information systems. He is the principal consultant of his consulting firm, Wireless-Nets, Ltd.Jim's 20 years of experience deals with the analysis, design, software development, installation, and support of numerous client/server and wireless network-based systems for retail, manufacturing, warehousing, health-care, education, and airline industries throughout the world. Jim is the author of three other books: Wireless LANs (1999, MTP), Wireless Networking Handbook (1996, New Riders), and Network Reengineering (1996,McGraw-Hill), as well as numerous articles for publications such as Network World and Communications System Design. Jim also speaks regularly at seminars, conferences, and trade shows in the United States, Europe, and Asia.Jim has served as chairman of the Institute of Electrical and Electronic Engineers (IEEE) Computer Society, Dayton Section, and as chairman of the IEEE International Conference on Wireless LAN Implementation. He also was an active member of the IEEE 802.11 Working Group, responsible for developing international standards for wireless LANs. His education includes a bachelor's and master's degree in electrical engineering (with emphasis in computer networking and software development), and a master's degree in business administration.As part of his Web site (http://www.wireless-nets.com), Jim maintains the Online Guide to Wireless Networking, which includes many of his articles and links to other sites. He is the editor of the monthly Wireless-Nets Newsletter, which is available free on his Web site at http://www.wireless-nets.com/newsletter.htmYou can reach Jim via e-mail at email@example.comD. Ed Lamprecht is a manager of the Professional Services Group at Monarch Marking Systems which focuses on custom software and network solutions. He has more than 17 years of programming experience in applications, operating systems, and network programming. He received a bachelor's degree in 1983 from the University of Northern Iowa and started his career with NCR Corporation programming operating systems in assembly for retail computing systems. It was during this time that Ed also developed applications for other platforms, including UNIX and DOS.In 1988, Ed joined Monarch Marking Systems, a company specializing in bar code printers and labels. Here he developed bar code applications for MS-DOS and Microsoft Windows as early as version 2.0, including PC drivers, TSRs, and connectivity software. Since 1996, Ed has been involved in data collection systems providing wireless network connectivity solutions of handheld printers and data collection terminals for retail, industrial, manufacturing, and health care markets.At Monarch, Ed has developed client/server applications, visited customer sites for analysis and problem solving, and provided international training on products and wireless connectivity. Ed holds seven patents in bar code software and handheld printer/data collectors. He lives with his wife, Michelle, and his son, Colin, in Dayton, Ohio. When not tinkering with PCs and networks at home, he enjoys model railroading, railroad memorabilia collecting, golfing, traveling, and spending time with his family.