Manga usually gets shipped in packages or boxes to protect them during transportation. Shipping companies handle the delivery based on the sender's instructions and destination.
Well, it depends. Some comic book subscriptions are sent by regular mail, while others might use express delivery services. The choice often depends on factors like cost and the urgency of getting the comics to subscribers.
It depends. Generally, if the manga meets the criteria set by the postal service for media mail, such as being educational or cultural in nature, it can be shipped that way. However, it's important to check the specific regulations of your local postal service.