Comic books can be a fun hobby and a valuable investment. If you’re still new to collecting, you can find plenty of advice on how to start your collection and what comics to buy. Once you’ve amassed a few issues, however, you may be wondering how best to protect your comic book collection.

Here are some tips for keeping your comics in mint condition.

Store Them in a Cool, Dry Place

Comic books are made from paper, which is sensitive to temperature and humidity. To prevent damage, store your comics in a cool, dry place away from direct sunlight. The ideal temperature for storing comics is between 65 and 70 degrees Fahrenheit, with humidity levels below 50 percent. Avoid storing them in basements or attics, as these areas tend to experience temperature and humidity fluctuations. If you don’t have a suitable indoor space, consider investing in a climate-controlled storage unit.

Use the Right Storage Supplies

The right storage supplies will help to preserve your comic book collection. For best results, use:

• Mylar or polyethylene bags – These materials are more durable than standard plastic and will help to protect your comics from dust and moisture. Make sure to choose bags that are acid-free and archival-safe to prevent yellowing over time.
• Board backing – Use acid-free boards that fit snugly inside the bag to add rigidity to your comic book covers and prevent bending.
• Comic boxes – Store your bagged and boarded comics in sturdy, acid-free boxes designed specifically for comic book storage. These boxes will protect your comics from dust, light, and physical damage.