Too Long; Didn't Read
<strong>Nir’s Note: </strong><em>This article is adapted from </em><a href="http://www.hookmodel.com/"><em>Hooked: A Guide to Building Habit-Forming Products</em></a><em>, a book I wrote with </em><a href="https://medium.com/u/c2146664c8e4"><em>Ryan Hoover</em></a><em> and originally appeared on TechCrunch.</em>