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Collectibles Accepted by CGC

Does CGC grade magazine-size or treasury-size books?

CGC does grade magazine-size books. However, CGC does not grade treasury-size books as their size exceeds even the largest available CGC holder.

Does CGC grade autographed books?

Yes, under the following circumstances: CGC's prestigious Signature Series label (yellow) is applied to comic books that have been signed under the direct observation of a CGC employee or a select CGC authorized witness, or in select instances where CGC accepted signed books directly from the signer / publisher. The signatures are authenticated by CGC, and the labels indicate who signed the book, the date it was signed and, in some cases, the location where it was signed. If a book is signed without a CGC representative present, it will receive a Qualified label (green), and will receive a Qualified grade. No authentication of signature is provided for books that do not have a CGC Signature Series label. To learn more about CGC Signature Series, visit

Does CGC certify sealed poly-bagged books?

CGC does not certify sealed poly-bagged books. To have a poly-bagged book certified by CGC, you must remove the book from its poly-bag or send written approval authorizing CGC to remove it. The words "Poly-bag removed" appear on the CGC label.

Still not finding an answer? Contact CGC Customer Service at 1.877.NM.COMIC, 941 360 3991 or