Michael Palmer, Ph.D., is an industry consultant and educator who has written numerous networking and operating systems books, including best-selling books about Microsoft Windows Server systems and UNIX/Linux. He is president of CertQuick, which provides computer and networking consulting services, technical authoring services, and computer science curriculum development for schools. Dr. Palmer has worked for 30 years in higher education and industry as an instructor, professor, systems and networking specialist, technical manager, department head, and consultant. He holds bachelor's, master's, and doctorate degrees from the University of Colorado at Boulder.C.M. Shifflett is the author of… Ki in Aikido: A Sampler of Ki Exercises, and is a student of the late George Simcox.