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Cristian Darie and Zak Ruvalcaba

Cristian Darie and Zak Ruvalcaba Cristian is a software engineer with experience in a wide range of technologies, and author of numerous technical books. If you want to say "hi," you can reach Cristian through his personal website at http://www.cristiandarie.ro. Zak Ruvalcaba holds a Bachelor's degree from San Diego State University and a Master of Science in Instructional Technology from National University in San Diego.