Summary Stuff Your Kindle Day: Aug 15–16, 2026 — 48 hours of free indie sci‑fi & fantasy ebooks. No Kindle needed—use the free Kindle app; event runs worldwide if titles are available in your local Amazon store. Stuff Your Kindle Day is back soon, and this time it’s all about sci-fi and fantasy. How these events actually workHere's how you can get your hands on free Kindle ebooks! Best of all, you don’t need a physical Kindle device to join in; anyone with the free Kindle app on a smartphone, tablet, or computer can participate.