A minute of nostalgia. Everybody who has had a marketing course during their education will definitely recognize the BCG (Boston Consulting Group) Matrix. Although this concept emerged in the last century, it remains an extremely useful tool for portfolio development. The Momentum Matrix in KDP Sales Analyzer classifies each active book in your catalog into one of four quadrants based on market growth rate and relative market share — helping you decide where to invest, scale, or cut. Here's how each quadrant maps to a books portfolio: - Leaders (High Growth / High Volume) — bestselling titles in trending niches; double down with sequels, series, or companion workbooks - Cash Cows (Low Growth / High Volume) — evergreen titles with steady sales; milk them for revenue to fund new launches without heavy reinvestment - Breakouts (High Growth / Low Volume) — new books in fast-growing niches; test with ads and optimize listings to see if they can become Stars - Dogs (Low Growth / Low Volume) — underperforming titles in stale niches; stop promoting to free up resources The core strategic value is reallocation of effort: Cash Cows fund the promotion of Breakouts and Stars, while Dogs are deprioritized. For a KDP publisher, this means your back catalog essentially finances your next profitable niche launches — turning your portfolio into a self-sustaining growth engine. What tools are you using to make decisions on your book portfolio development?

A small yet powerful tool was added today to Publisher Tools at RoyaltyGuild.com: KDP Sales Analyzer. KDP Royalty Estimator is good for seeing sales for a period, but it offers very limited options for seeing trends. Publisher Champ is a great solution, but it could be overwhelming with the amount of reports it provides. To make decisions about the development of our portfolios, we need to see the key data and trends. You can visit https://kdpreports.amazon.com/royalties, open Start Date, choose Lifetime, and click the big button Download report on the right. After you save the report file, drop it into https://royaltyguild.com/tools/sales-analyzer, and you will see the most important data in a very intuitive format. The service does not save any data on a server; all data is processed in your browser. And it's free for everybody. Enjoy!

Just a brief heads-up. BookVillage will increase the subscription price for new users in the next few days. If you want to lock in the special $20/month price forever, start your free month of service today: https://bookvillage.pub/?via=guild and get two more months at a discounted price. If you have any questions, do not hesitate to ask @Adriano Ferrigno

as i said I'm new and really looking forward on reaching forward of lvl 3 for the classroom courses please like:)