by Robert M. Overstreet & Arnold Blumberg. This updated full-color edition with over 200 full-color photographs, this reference on grading the condition of comic books helps you learn how to find the right grade, understand grading terminology, and discover all there is to know about the restoration and preservation of comic books. Included is the authors' 10-point grading system, plus detailed descriptions of restored comics, primary and split grades, 'odd format' grading, and revised articles on grading.