This is an in-depth summary and review of the book "The Concept Textbook: Designing Value" by Takahiro Hosoda, a practical guide to systematic concept-making. The summary explains that a concept is defined as a "blueprint for value" that focuses on the customer's perspective, contrasting it with an idea which is based on the provider's perspective.

It outlines a structured, five-step methodology for creating high-quality concepts, which includes starting with the right questions, employing either an "insight-based" or "vision-based" story construction approach, and using defined linguistic structures for precise language formulation.

It emphasizes that concept creation is a learned skill, not solely dependent on talent, and concludes by detailing how a concept must be optimized and applied across various business functions, such as product development, marketing, and organizational strategy, to be effective.