What type of content is allowed in Media Mail?

Media Mail is a specialized class of mail offered by the USPS that allows for the shipment of certain types of educational materials at a lower cost. The correct answer highlights that books, sound recordings, and printed music are specifically permitted under this mailing class. This is significant because Media Mail is primarily intended for sending media that is informative, educational, or recreational, making it a cost-effective choice for libraries, schools, and individuals sending these types of items.

The allowed content must be specifically educational or informational in nature. For instance, books can range from fiction to textbooks, sound recordings are typically musical albums or spoken word content, and printed music includes sheet music and scores.

This option reflects the criteria set forth by the USPS for what can be shipped using Media Mail, emphasizing its focus on printed and recorded materials rather than personal correspondence or promotional materials. Other choices do not accurately represent what is permissible under Media Mail, as options involving food items, all types of media, or promotional materials fall outside of the guidelines established for this mailing class.