TRUE400Fiction, Non-Fiction, and TextbooksThe world's leading online source of ebooks, with a vast range of ebooks from academic, popular and professional publishers.ScopeData scope of this API. https://songer.datasn.com/data/api/v1/u_15ff9ad43f41a2ff2f41/book_14/__scope/https://songer.datasn.com/data/api/v1/u_15ff9ad43f41a2ff2f41/book_14/__scope/category_1/?app=xml14004003232321category_1category_1.id