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MICHAEL SALTZMAN is the founder of /training/etc Inc. He has developed extensive course materials, including courses in Perl, C/C++/STL, and Java and has led a wide variety of technical seminars on programming languages and UNIX. Before pursuing a career as a technical lecturer and writer, he was employed for 23 years by the National Security Agency, where he taught a wide range of programming and UNIX system administration courses. He holds MS degrees in Computer Science from the American University and Johns Hopkins University.