Bill has been in the computer industry for over 20 years. Originally in Technical Sales and IT Consulting with Sprint, he made his transition to Certified Technical Trainer in 1997 with ExecuTrain. he now runs his own company (Parallel Connections) as an independent contractor based in Birmingham, Alabama, teaching classes worldwide for most of the national training companies and some regional training companies; sometimes without leaving the house!In addition, he has written and produced technical training videos for Specialized Solutions, Virtual Training Company, Palaestra Training Company, and Pearson. He has written video titles including A+, Network+, Windows 2003 Management, Windows XP Management, Windows 2003 Security, Server+, and Interconnecting Cisco Network Devices (ICND 1 and 2). His most recent title is "Fundamentals of VMware vSphere Virtualization" for Safari Live Lessons; which is still a work in progress. He has also written several books including the 70-298 Exam Cram 2 title (Designing Security for a Windows Server 2003 Network) for Que Publishing and co-written the security related 70-297 and 70-299 Exam Cram 2 titles. In addition, he wrote the Microsoft Certified Desktop Support Technician (MCDST) Study Guide for Sybex Inc. as well as their Network+ 2009 and 2010 Objectives Review Guide books. His latest book is "The Official VMware VCP5 Certification Guide" for Pearson -VMware Press. Bill's aspiration is as follows, "My job is to understand the material so well that I can make it easier for my students to learn than it was for me to learn. Toward that end, I always strive to provide a fun and effective learning environment whether in person, in print, on video, or online."