Roaming Whale is a second-hand book recycling trading platform that provides users with new book sales and second-hand book door-to-door recycling service. Users can recycle their idle books for the platform, and the book fee can be deducted from the original book price of 85%. Literature, travel, fiction, technology and other categories. The second-hand book circulation platform "Roaming Whale" recently announced that it has obtained the starting capital of 10 million angel rounds of financing.