Harley Hahn is an internationally recognized writer, analyst and consultant. He is the author of nineteen books on various topics, including the best selling The Internet Complete Reference, Harley Hahns Internet & Web Yellow Pages, and the highly regarded Assembler Inside & Out. His Unix books include Unix Unbound and Harley Hahns Students Guide to Unix. Hahn has a degree in mathematics and computer science from the University of Waterloo, Canada and a graduate degree in computer science from University of California at San Diego. Before becoming a professional writer, he studied medicine at the University of Toronto Medical School. Hahn enjoys writing computer books because “I get to sleep in, and I like telling people what to do.” Hahn does not live in a converted farmhouse in Connecticut with his wife, three children, and a Labrador retriever named Rolf. Nor does he commute frequently to New York.