Ravi Das has been an Information Technology professional for over 20 years. His vast experience includes software configuration management, database administration and IT security, with a specialization in biometrics. He has written and published two books through CRC Press and is currently working on his third. His accomplishments also include a comprehensive online training book for the CSA + exam.
Ravi holds an M.S. in Agribusiness Economics (International Trade) from Southern Illinois University, and an MBA (MIS/Computer Science) from Bowling Green State University.
He is a Business Development Specialist/Technical Writer for BN.Net, Inc., a leading technical communications firm based in Greater Chicago.

Preston de Guise has been working with data recovery products for his entire career – designing, implementing and supporting solutions for governments, universities, and businesses ranging from SMEs to Fortune 500 companies. This broad exposure to industry verticals and business sizes has enabled Preston to understand not only the technical requirements of data recovery, but the management and procedural aspects too.