Hamelyn is a Spanish re-commerce startup dedicated to giving books a second life. Through its online platform, users can easily sell their used books by scanning or entering the ISBN to receive an instant offer. Hamelyn handles the entire process — from free doorstep pickup to quality verification and resale through its marketplace and partner channels. The platform is designed for readers who want a convenient, sustainable way to declutter while supporting circular consumption. What makes Hamelyn stand out is its automated pricing engine, hassle-free logistics, and exclusive focus on books, positioning it as the go-to solution for sustainable book resale in Spain.