Sunsell, accessible at https://www.classswap.co.uk/, is an online platform dedicated to facilitating the exchange and sale of second-hand educational materials and resources. The website allows users, primarily students and educators, to buy, sell, or swap a wide variety of educational content, including textbooks, notes, and other academic resources. By enabling the reuse and repurposing of educational materials, Sunsell aims to create a sustainable and cost-effective solution for students looking to save on academic expenses.