Library GO is an interactive robot swarm group carrying books around in the hope of spreading humane care and delivering warmth. Library GO carts will arrive at users' front doors by request. Carts can express delight and excitement through designed motion patterns when they meet users. When users approach and greet the carts, the greeting actions will trigger the carts to open their cabin and raise the bookshelves. Users will then be able to scan through the shelves and select their favorite books just as before COVID-19.