The Lean Product Playbook by Dan Olsen is a practical guide to developing products that meet real customer needs and achieve product-market fit. Olsen presents a structured, step-by-step approach that helps product teams identify their target customers, understand their problems, define a strong value proposition, design the right product experience, and test ideas through minimum viable products (MVPs). The book emphasises continuous learning, customer feedback, experimentation, and iterative improvement rather than relying on assumptions. It is particularly useful for entrepreneurs, startup founders, product managers, designers, marketers, and business professionals involved in creating, launching, or improving products.