You can often go to Settings > Device Options > Storage Management (within the app or device settings) to select and remove multiple titles at once.

Managing your digital library is essential for keeping your mobile device running smoothly. Whether you're running out of storage or just want to declutter your "Downloaded" shelf, knowing how to use the feature correctly can save you from accidentally losing books you’ve paid for. How to Remove a Download in the Kindle App

If you have dozens of books to clear, removing them one by one is tedious.

It is critical to understand the difference between these two options to avoid losing your purchases. What it Does Re-downloadable? Deletes the local file from your specific device only. Yes , for free from your Kindle cloud. Permanently Delete

To see only what is currently taking up space, tap the Downloaded filter at the top of the library screen. Select the Book: Long-press the cover of the book you want to remove.