Lewis C. Lin is an entrepreneur, tech executive, and bestselling author known for making PM interview prep accessible to candidates worldwide.

He has been recognized by CNN as one of the  "top 10 job tweeters you should be following," and has been featured in FOX, ABC News, the San Francisco Chronicle, The Atlantic, The Telegraph, and Business Insider.

His nine Amazon bestsellers — including Decode and Conquer, The System Design Interview, and Be the Greatest Product Manager Ever — have helped tens of thousands of candidates land roles at Google, Amazon, Microsoft, and beyond.

Before founding Impact Interview, Lewis served as Director of Product Management at Microsoft, having previously led new product launches at Google AdWords. He holds a B.S. in Computer Science from Stanford University and an M.B.A. from Northwestern University's Kellogg School of Management.