Pawan Bhardwaj, an independent technical trainer and author, is MCSE, MCSA, Security+, Network+, I-Net+ and A+ certified. He teaches Windows Administration and Networking classes and also provides consulting to training institutions. He has authored or contributed to 12 certification books and served as technical reviewer for the best selling title 'MCSE Windows 2000 Exams in a Nutshell' and 'MCSE 2003 Core Exams in a Nutshell' by O'Reilly.