Don Poulton (A+, Network+, Security+, MCSA, MCSE) is an independent consultant who has been involved with computers since the days of 80-column punch cards. After a career of more than 20 years in environmental science, Don switched careers and trained as a Windows NT 4.0 MCSE. He has been involved in consulting with a couple of small training providers as a technical writer, during which time he wrote training and exam prep materials for Windows NT 4.0, Windows 2000, and Windows XP. Don has written or contributed to several titles, including Security+ Lab Manual (Que, 2004), "MCSA/MCSE 70-299 Exam Cram 2: Implementing and Administering Security in a Windows 2003 Network (Exam Cram 2)" (Que, 2004), and "MCSE 70-294 Exam Prep: Planning, Implementing, and Maintaining a Microsoft Windows Server 2003 Active Directory Infrastructure"(Que, 2006). In addition, he has worked on programming projects, both in his days as an environmental scientist and, more recently, with Visual Basic to update an older statistical package used for multivariate analysis of sediment contaminants. When not working on computers, Don is an avid amateur photographer who has had his photos displayed in international competitions and published in magazines such as "Michigan Natural Resources Magazine"and "National Geographic Traveler," Don also enjoys traveling and keeping fit. Don lives in Burlington, Ontario, with his wife Terry.