The Lean Startup by Eric Ries is a must-read for any aspiring entrepreneur or business owner. This book introduces the concept of lean startup methodology, which emphasizes the importance of continuous innovation and rapid experimentation. Ries provides practical advice on how to build a successful business by testing and iterating on ideas, rather than relying on traditional business planning. With real-world examples and case studies, this book offers valuable insights into how to navigate the challenges of starting and growing a business in today's fast-paced, ever-changing market.