1. Use ladders or scaffolding provided by libraries: Most libraries provide ladders or scaffolding for readers to use. You can ask the library staff about the location and use of relevant equipment.
2. Ask the library staff for help: If you can't get the above books directly, you can ask the library staff for help. They may use related equipment, such as long poles or folding ladders, to help you take down the books.
3. Use self-service equipment: Some modern libraries may be equipped with self-service equipment, which you can use to get books on the shelves. These devices may be bookshelves that automatically rise or fall, and you just need to follow the instructions on the screen.
Please note that before the above operation, it is recommended to communicate with the library staff and follow their instructions. Different libraries may have different regulations and operating methods.