This scatter plot visualizes library books by pages and borrow count, with point size encoding rating and color encoding genre. The visualization is built using D3 v7, employing the reusable scatter-plot factory pattern similar to Bostock's approach. It uses `d3.scaleLinear` for axes, `d3.scaleSqrt` for sizing, `d3.scaleOrdinal` with `d3.schemeTableau10` for colors, and `d3.axisBottom`/`d3.axisLeft` for ticks. Tooltips display title, pages, borrows, rating, and genre, while a legend maps genre colors. Data comes from `Library_book.csv`, loaded via a Gist URL.