Sander van Vugt is an independent author, consultant, and technical trainer, living in the Netherlands. Sander is specialized in open source software and virtualization. He has written over 50 books on many subjects, mostly about Linux. As a consultant, Sander has realized numerous projects involving open source software and virtualization for different companies around the world. You can find more information about him on his website, http://www.sandervanvugt.com/.