Hooked shows how to create digital products that are engaging, compelling and habit-forming. Nir Eyal reveals how big tech companies like Google, Twitter and Facebook keep us coming back to their apps over and over again. His "Hooked Model" has 4 steps: trigger, action, variable reward and investment.
The Lean Startup shows how to achieve business success by learning what customers want fast. Eric Ries explains how to launch a minimum viable product, why you should ignore vanity metrics, and how to use 'split-testing' to avoid wasting years of your life building a product nobody wants.