CAT Price Guide logo
Trends in comic art sales for investors, hobbyists, and fans

Grading Companion

for the Comic Art Trends Price Guide

The grading companion for the CAT Price Guide defines and illustrates the CAT Scale. It gives numerous examples to aid the reader in scoring original comic artwork according to the CAT Scale.

Big News!

The paperback version of the Comic Art Trends Price Guide Grading Companion is now available for purchase at Amazon. The paperback version is $5.99 through Amazon. I still like hardcopies of books, comics, and music. If you feel the same way, or just want to partner with me, feel free to buy the book from Amazon and download the FREE e-version right here. Download pdf

Remember, the 78 page Grading Companion provides detailed information with examples of the various CAT score grades. All of the possible CAT score grades from 1 to 10 plus the two Iconic scores are illustrated with picture examples.

The Comic Art Trends Price Guide Grading Companion was never intended to be a money-maker! It's purpose is to supplement the Comic Art Trends Price Guide so readers can get the most benefit from the Price Guide.

This is an early version, there may be mistakes and omissions. The PDF also does not have our advertisers or their catalogs. So, by all means, check in later and download a new version when it becomes available.

JUST A REMINDER to potential advertisers: Advertising in the Comic Art Trends Price Guide Grading Companion is an inexpensive way to partner with me and ensure the Price Guide not only becomes an annual instituion, but that it continues to grow in terms of information and coverage.

Free Grading Companion: Download pdf

Buy the Comic Art Trends Price Guide 2019 Legends Edition here!

Enter email to register
Enter the email address that you want registered for your copy of the Comic Art Trends Price Guide. Paypal will direct you to a link to download the Price Guide. You may pay for multiple copies. I will contact you through your email address to register the other copies.

Comic Art Trends Price Guide Grading Companion

Advertising is also available in the Comic Art Trends Price Guide Grading Companion. Each full page black and white ad is $50 (US). Ads for the Grading Companion will be included in both the hard copy version sold through Amazon and the free download PDF version. There is also an opportunity to customize the PDF for retailers who want to use the guide as content to enhance an electronic catalog of their own products. Please contact me for more information.

Email address for Patrick Bain

Copyright 2019 Patrick Bain All Rights Reserved.

Limited Edition available now


How can I invest in original comic art?

Some sound advice
Tools in the CAT Price Guide


Pricing Info
Page Options
Early Bird Discounts

Grading Companion

Free Download
CAT Scale Guidance
Where to get a paperback copy
CAT Scale table of categories

Contact us

Make suggestions
Share your expertise
How to get your data into the Comic Art Trends Price Guide


CAT Scale Grades
15 Golden Iconic    
12 Golden Iconic Interior    
10 Landmark    
9 Artist Iconic    
8 Classic    
7 Grade A Hero Superior    
6 Grade A Hero Average    
5 Grade A Hero 2/3 Page Grade B Hero Superior  
4 Grade A Hero 1/3 Page Grade B Hero Average Grade A Villain Superior
3 Grade A Hero Cameo Grade B Hero 2/3 Page Grade C Hero Superior
Grade B Villain Superior
2 Secret Identities
Significant Supporting Characting
Grade B Hero 1/3
Grade C Hero Average
Grade A/B Villains Average
1 Forgotten Heroes Uncredited Characters Cameos of Major Heroes/Villains

Examples of the CAT Scale scores

Example of Interior CAT 6 Page

CAT score R6
Superboy 213 Page 5 with art by Mike Grell
1. The Legion of Super-Heroes is a Grade B Team.
2. This page features many of the favorite Legionnaires and some good action.
3. Mike Grell is one of the premier Legion artists, particularly during this period.
4. Since Grade B teams get a Plus One when multiple characters are involved, this page rates Superior R5 Plus One to attain the R6 grade.
5. Grade A heroes and teams are identified in the Grading Companion.
6. Plus One artists are detailed in the Grading Companion.
Image used by permission of Heritage Auctions,