Eric Ries is the author of the book, The Lean Startup. Previously, he co-founded and served as Chief Technology Officer of IMVU. He is the co-author of several books including The Black Art of Java Game Programming (Waite Group Press, 1996). While an undergraduate at Yale University, he co-founded Catalyst Recruiting. Although Catalyst folded with the dot-com crash, Ries continued his entrepreneurial career as a Senior Software Engineer at There.com , leading efforts in agile software development and user-generated content. In 2007, BusinessWeek named Ries one of the Best Young Entrepreneurs of Tech. He serves on the advisory board of a number of technology startups and venture capital firms. In 2008 he served as a venture advisor at Kleiner Perkins Caufield & Byers.