Knowing the condition of your comic book will help in knowing the value of it. Grading your comic allows you to describe the condition that it is in, and there is a universal scale which is used. Grading your own comic is subjective. The Comics Guaranty Company, or CGC, can grade your comic for a fee. Doing this will provide a third party opinion and make the grade less subjective. They use the same scale as well so it’s not always necessary to pay them to do the grading for you.
The highest grade a comic can receive is “mint”. If a comic is in mint condition it should look like it just came off the press. For a comic to be in mint condition there can’t be any tears, cuts or creases. The comic should be able to lay flat on a surface without any rolling or curving of the pages. The spine has to be the same way, completely straight. The staples in the spine have to look new and can’t have any rusting or unusual bending. The pages of a mint condition comic can’t have any fading or discoloration, marks or smudges, and there can’t be any rips or tears. The only accepted marking on the comic allowed is