Piranesi is pre-filled — edit the title, author, pages, or minutes, then log it to build your private reading list.
Every log rewrites the whole dashboard, not just the last row.
Your reading list is stored to your own collection. Each run returns the full list, a minutes-per-book series drawn as an interactive chart, a downloadable chart image, and a plain-English read of your habits — whether you binge one long session a week or read in short daily stretches.