Dr. William Stallings hasauthored 19 titles, and counting revised editions, over 40 books on computersecurity, computer networking, and computer architecture. His writings haveappeared in numerous publications, including the Proceedings of the IEEE,ACM Computing Reviews and Cryptologia. He has received 13 times theaward for the best Computer Science textbook of the year from the Text andAcademic Authors Association. In over 30 years in thefield, he has been a technical contributor, technical manager, and an executivewith several high-technology firms. He has designed and implemented both TCP/IP-basedand OSI-based protocol suites on a variety of computers and operating systems,ranging from microcomputers to mainframes. As a consultant, he has advisedgovernment agencies, computer and software vendors, and major users on thedesign, selection, and use of networking software and products. He created andmaintains the Computer Science Student Resource Site atComputerScienceStudent.com. This site provides documents and links on a varietyof subjects of general interest to computer science students (andprofessionals). He is a member of the editorial board of Cryptologia, ascholarly journal devoted to all aspects of cryptology. Dr. Stallings holds aPhD from MIT in computer science and a BS from Notre Dame in electricalengineering.