At the beginning of 2025 Anna's Archive (yes, that portal of data and books :)) had announced a reward of 10,000 dollars to achieve the best possible visualization of their data made increasingly difficult by technical complications. Here the post: https://annas-archive.org/blog/all-isbns-winners.html Exploring the universe of ISBNs through an interactive map: a surprising project for publishing and data visualization enthusiasts The project created by Phiresky (exposed very clearly here: https://phiresky.github.io/blog/2025/visualizing-all-books-in-isbn-space/ ) proposes an innovative visualization of the international ISBN system. Through an interactive graphic representation, it is possible to explore in a structured and intuitive way the distribution of books in the numerical ide...