This summary presents an overview of a profitable self-publishing business on Amazon's Kindle Direct Publishing (KDP) platform, encompassing four published books that have collectively generated over $10,292.93 in royalties from February 17 to October 31, 2026. After accounting for advertising expenses totaling $4,288.73, the business retains $6,004.20, indicating a positive profit margin of 58.3% post-advertising costs. The books revolve around social work exam preparation and home improvement topics, with the enterprise experiencing eight consecutive months of profit post-ad spending. Key performance metrics highlight a royalty-to-ad spend ratio of 2.40 throughout the reporting period. May’s ratio peaked at 3.68, while July achieved the strongest results with a 6.88 ratio. October closed with over $2,056.85 in royalties and revealed a 30.2% increase in earnings compared to September. Each book in the catalog has contributed to the earning, with royalties distributed as follows: $5,376.25 from "Exam Prep 1," $2,517.24 from "Exam Prep 2," $1,222.84 from "Hobby and Craft," and $1,176.60 from "Exam Prep 3." The business is equipped with pre-configured advertising campaigns, offering a structured opportunity for growth. Potential buyers are advised to utilize the business's existing strengths, refine advertising strategies, develop additional related content, and explore expansion possibilities into new formats or markets. Overall, this P&L summary provides prospective buyers with a solid foundation for strategic planning in the acquisition and further development of this KDP business.