Sprint: How to Solve Big Problems and Test New Ideas in Just Five Days door Jake Knapp, John Zeratsky & Braden Kowitz

“Sprint offers a transformative formula for testing ideas that works whether you’re at a startup or a large organization. Within five days, you’ll move from idea to prototype to decision, saving you and your team countless hours and countless dollars. A must read for entrepreneurs of all stripes.” —Eric Ries, author of The Lean Startup

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