Book-Studio is a web based analytics and optimization tool designed for self published authors who sell books through Amazon KDP. The platform focuses on diagnosing why a book may not be generating sales by analyzing how the book interacts with Amazon's search and ranking algorithm. Its primary function is to help authors identify and correct issues related to visibility, rather than content quality, by examining signals such as keywords, categories, listing relevance, conversion history, and advertising performance. The tool offers a set of seven integrated features. These include a niche and ASIN research tool for identifying profitable markets and weak competitors, an Amazon Ads audit that distinguishes between cost effective and wasteful keywords, and a keyword generator that fills all seven KDP backend slots with long tail terms and estimated search volumes. Additional capabilities include a full book audit that scores cover, title, SEO, positioning, and price, as well as a listing rewrite service for titles, subtitles, descriptions, and backend keywords. The platform also provides tools for creating enhanced product pages with marketing modules and A+ visuals, and a print ready PDF generator using KDP templates and AI generated images. A typical workflow begins with a free diagnostic, where the user enters their book's ASIN to receive an immediate analysis of why sales may be stagnant. From there, authors can use the various tools to adjust their product listing, refine keyword targeting, and restructure ad campaigns. The platform is intended for independent authors who have already published a book and are experiencing a plateau in sales, offering a structured path to improve discoverability and conversion without rewriting the book itself. Book-Studio is operated by Genai Solutions SRL, based in Roux, Belgium.