Outrageous Startup Growth: Uncovering the Secrets of User Psychology to Scale Your Success solves a critical problem facing entrepreneurs: how to achieve sustainable growth in an overcrowded market. Written by Colin Hodge, who scaled startups to over 100 million users, this book reveals how understanding user psychology is the difference between startups that go viral and those that go splat. Hodge draws on nearly two decades of tech industry experience to show how behavioral science drives business success. Through detailed case studies of companies like Facebook and Duolingo, the book demonstrates how to harness psychological principles including social proof, scarcity, and FOMO to optimize acquisition and retention. Readers learn practical methods for understanding their target audience, from creating user personas to the Method Mindset Technique that involves deep emotional immersion in the user's experience. Outrageous Startup Growth provides a comprehensive tool kit of cognitive biases and psychological tactics that can be ethically applied to product design and marketing. The book includes real-world examples from Hodge's own journey, including how he quickly grew Bang With Friends to six million users before selling it and achieved 300,000 monthly downloads through App Store optimization without paid advertising. Readers gain access to the Outrageous Growth Framework, covering everything from developing entrepreneurial resilience to applying psychology in negotiations and exits. Special features include detailed frameworks, case studies, and actionable strategies for immediate implementation. Outrageous Startup Growth is essential reading for entrepreneurs, product managers, growth marketers, and anyone seeking to build products that users love. By revealing the psychological principles behind viral growth, this book equips readers with proven strategies to scale their businesses sustainably and authentically.