A must-read for everyone who cares about driving customer engagement -- Eric Ries, author of The Lean Startup

The most high bandwidth, high octane, and valuable presentation I have ever seen on this subject -- Rory Sutherland, Vice Chairman, Ogilvy & Mather

The book everyone in Silicon Valley is talking about -- Boris Veldhuijzen van Zanten, founder of The Next Web

Hooked gives you the blueprint for the next generation of products. Read Hooked or the company that replaces you will -- Matt Mullenweg, Founder of Wordpress

You'll read this. Then you'll hope your competition isn't reading this. It's that good. -- Stephen P. Anderson, Author of 'Seductive Interaction Design'

Nir's work is an essential crib sheet for any startup looking to understand user psychology. -- Dave McClure, Founder 500 Startups

When it comes to driving engagement and building habits, Hooked is an excellent guide into the mind of the user. -- Andrew Chen, Technology Writer and Investor

I've learned a great deal from Nir, and you will too. He'll help you design habits to benefit your users, and your company. -- Dr Stephen Wendel, author of 'Designing for Behaviour Change'

If you're serious about designing seductive products that sell, Hooked is the only psychological toolkit you'll need -- Nathalie Nahai, Web Psychologist and best-selling author of Webs Of Influence: The Psychology Of Online Persuasion (Pearson)

Draws on behavioural economics and neuroscience to examine why some products, games and television shows become habits, while others sink. This is useful knowledge for entrepreneurs, marketers and designers ... crucial to generating followers, viewers, consumers and revenues. It is also of wider significance ― Financial Times Business Education

Gives an overview of one of the most interesting battles in modern business: the intense competition to create new digital products that monopolise people's attention -- Schumpeter ― The Economist

Principles derived from behavioral science play an increasing role in software design ... Among the most influential is Nir Eyal, an entrepreneur turned user-­experience guru who has become Silicon Valley's most visible advocate of habit-forming technology ― MIT Technology Review

A must read for anyone looking to start a company or develop a product. It provides four actionable steps to attract users and to ensure that they continue to come back. -- Firas Kittaneh ― Entrepreneur

Nir Eyal spent years in the video gaming and advertising industries where he learned, applied, and at times rejected, techniques described in Hooked to motivate and influence users. He has taught courses on applied consumer psychology at the Stanford Graduate School of Business, the Hasso Plattner Institute of Design, and is a frequent speaker at industry conferences and at Fortune 500 companies. His writing on technology, psychology, and business appears in the Harvard Business Review, The Atlantic, TechCrunch, and Psychology Today.