Over the last 25 years, Steve Blank has been part of, or co-founded, eight Silicon Valley start-ups, which ran the gamut from semiconductors and video games, to personal computers and supercomputers. He teaches entrepreneurship at U.C. Berkeley Haas Business School, the joint Berkeley/Columbia MBA program, and at the Stanford University Graduate School of Engineering. Steve teaches a methodology of starting and managing marketing, sales and business development in high technology startups.