These books are great resources for history and architecture enthusiasts. To use them, simply open and start reading through the pages. When handling, be gentle due to the loosened bindings. Avoid eating or drinking near the books to prevent spills. Store them in a dry and cool place to slow down the yellowing of the pages. You can also use a bookend to support the loosened bindings. If you want to protect the dust jackets further, you can consider using a clear plastic cover.