Here are some guidelines for shipping comic books using media mail:
1. Weight: Media mail packages have a weight limit of 70 pounds (31.8 kilograms).
2. Dimensions: The maximum dimensions for media mail packages are 108 inches in length and girth combined. The girth is calculated by measuring the distance around the thickest part of the package, excluding any handles or protrusions.
3. Contents: Media mail packages must contain at least 50% educational or informational content. This means that more than half of the weight of the package must be composed of books, educational materials, or other qualifying media. Comic books clearly meet this requirement.
4. Mailing Method: Media mail packages must be clearly marked "Media Mail" on the front and back. You can use a media mail stamp or affix a media mail shipping label to your package.
5. Insurance: Media mail packages can be insured for up to $50,000. Insurance is optional but recommended for valuable comic books.
6. Tracking: Media mail packages come with basic tracking, but it is not as comprehensive as the tracking provided for other USPS services like Priority Mail or First-Class Mail.
Please note that media mail is a slower shipping method than other USPS services. It can take anywhere from 2 to 10 business days for media mail packages to be delivered, depending on the distance traveled. However, media mail is considerably cheaper than other shipping options, making it an economical choice for sending comic books.