Emilio Raggi lives in Buenos Aires, Argentina, and works in one of the biggest companies in the country. He was very much a Windows fanboy, until, one day, he had to manage a Ubuntu desktop deployment. He was highly qualified as Microsoft implementer, holding certificates as an MCP and MCSE, and being a consultant for an MS Partner.Still, Ubuntu had its charms and won him over. He is also an avid student of philosophy.
Keir Thomas has been writing about computers for nearly two decades and is the author of the best-selling Mac Kung Fu and Ubuntu Kung Fu, also from Pragmatic Bookshelf. The author of more than ten books, which have been read by more than a million people and translated into many languages, Keir formerly edited computer magazines. He lives in England with two cats.
Sander van Vugt is an independent trainer and consultant, living in the Netherlands and working throughout the European Union. He specializes in Linux and Novell systems, and has worked with both for over ten years. Besides being a trainer, he is also an author, having written more than 20 books and hundreds of technical articles. He is a Master Certified Novell Instructor (MCNI) and holds LPIC-1 and -2 certificates, as well as all important Novell certificates.