What this record means
The record shows that “PAPERBACK GAMES” was registered on the Principal Register to New Product Company, The on September 10, 1974, but the registration was cancelled on February 24, 1981 because the owner failed to file an acceptable Section 8 declaration, and the mark is now listed as dead. The filing does not include any listed classes or a description of goods or services, so the USPTO record does not specify a particular product area; consequently, the closest area of concern would be any use of the exact phrase “PAPERBACK GAMES” in a commercial context, especially for gaming or publishing related offerings, because that is the wording the record protects. The record does not give the owner control over every possible use of those words in unrelated fields, and there are no entries showing oppositions, cancellations by third parties, or other enforcement activity. The latest meaningful event is the 1981 cancellation, and no future deadlines appear in the data. I'd treat this as a moderate concern if you plan to use the same phrase for games or similar entertainment products.
Informational only - not legal advice.