Orin Thomas is a writer, teacher, and consultant whose books include the Self-Paced Training Kits for Windows® 7, Vista®, Server 2008 / 2008 R2 and Exchange exams.
John Policelli, MCTS, MCSA, MVP, is an IT consultant specializing in architecture, security, and strategic planning.
Ian McLean, MCITP, MCDBA, MCT, has 40 years of experience in industry, commerce, and education. He's written 18 books, including coauthoring MCSA/MCSE Self-Paced Training Kit (Exam 70-291): Implementing, Managing, and Maintaining a Microsoft Windows Server 2003 Network Infrastructure, Second Edition, plus many technical articles and papers. He currently runs his own consulting company.
J.C. Mackin, MCITP, MCTS, MCSE, MSDST, is a writer, editor, consultant, and Microsoft® Certified Trainer who's worked with Microsoft networks for more than a decade. He has authored several Self-Paced Training Kits, including exams 70-291, 70-622, and 70-643.
Paul Mancuso, MCITP, MCSE, MCT, has been an instructor, consultant, and writer in the IT field for 20+ years, with a focus on certification training.
David R. Miller, MCITP, MCT, CISSP, PCI QSA, etc., is an IT consultant specializing in information systems security, legal and regulatory compliance, and network engineering. David has been lead author or co-author on ten books in the IT and security industry and performs regularly as a Microsoft Subject Matter Expert.
Sam Sena, MCITP, MCT, CISSP, is a consultant and author focusing on IT infrastructure solutions and business continuity planning.
GrandMasters is an IT consulting firm specializing in IT content development, exam development, and custom technical support.