This book was signed by Humberto Ramos, Dan Slott who wrote with great power.... and Stan Lee who signed and drew a full body image of Spider-Man !!!
(Book has been re-holdered in a new case)
A little about CGC. This is a SIGNATURE SERIES verified by CGC. (Certified Guaranty Company) To qualify for a Signature Series (Yellow Label), the signature has to be obtained by the artist with a CGC employee to witness the transaction.
This label is applied to comic book that have been signed by someone of significance to the comic, under the direct observation of a CGC representative, and are thus certified as an authentic signature by CGC.