Welcome to Gemstone Publishing, Inc., home of The Overstreet Comic Book Price Guide and much, much more!

While The Overstreet Comic Book Price Guide is the foundation of our company, our coverage of pop-culture collectibles is much more expansive. Be sure to browse our site and see what else we have to offer. From movie and concert posters to gaming to cosplay to Star Wars and beyond, we publish books to cover all of your collectible interests, with more to come!



Effective immediately, the new address for Gemstone Publishing is:

Gemstone Publishing

10720 Gilroy Road

Suite 300

Hunt Valley, MD  21031

Comic Book Price Guide #51 Release UPDATE!

We have received word from the printer that, due to an industry-wide paper shortage which has caused a production slowdown, the release of this year's edition of the Overstreet Comic Book Price Guide will be delayed by one week. Instead of the previously announced release date of July 21, 2021, the release will be delayed until Wednesday July 28, 2021.



Now available for order!

The 6th Edition of The Overstreet Guide to Grading Comics is now available! And for the first time, it is also available in a hardcover version. 

Grading_6_HC          Grading_6_SC

Grading Guide 6 HC         Grading Guide 6 SC 


Our anniversary commemorative book Overstreet @ 50: Five Decades of the Overstreet Comic Book Price Guide is in-stock and available for order, offered in both hardcover and softcover editions. Sales have been brisk, so don't delay too long if you want to be sure to get a copy.

This companion book celebrates and documents the 50-year history of The Overstreet Comic Book Price Guide with an extensive interview with Bob Overstreet, commentaries from Paul Levitz, Maggie Thompson, Beau Smith, David T. Alexander, Buddy Saunders, Matt Nelson, Steve Borock, and others. There’s also a behind-the-scenes look at the development of the Guide, a cover gallery, the Overstreet Hall of Fame, and more.

Overstreet @ 50 clocks in at 336 pages. It features an Incredible Hulk cover by Joe Jusko and is available in hardcover ($30) and soft cover ($20) versions. The hardcover is exclusive to comic shops and to this website. 


  O@50           O@50_SC    

        Overstreet @ 50 HC               Overstreet @ 50 SC          


Important note for those placing pre-orders for upcoming publications...

In case you're wondering why your multiple-item pre-orders have been split, and are concerned about the shipping costs...

Due to a necessary programming function, pre-orders for multiple items or orders containing a combination of pre-orders and in-stock items are automatically split into separate orders for each line item. This occurs in case multiple pre-order items are received and shipping at different times. This allows each item to be filled promptly, without having to wait for other pre-ordered items to arrive. 

We make every effort to fulfil your orders in as few shipments as possible, to minimize your shipping costs. Whenever we are able to ship multiple orders together, we will combine the orders and recalculate your shipping costs accordingly.

We strongly recommend paying by credit card rather than PayPal if you are placing a pre-order. Credit card orders are not charged until they are ready for shipment, so your shipping charges will be checked and adjusted for accuracy at the time your charge is processed.

If you pay by PayPal, your account is charged immediately. This then requires that you carry a possible shipping charge overpayment until your pre-ordered items are ready to ship and the actual cost has been recalculated. We will refund any excess charges to your account once the revised and accurate shipping charge is determined, but depending on how far in advance of publication date you place your order, it could be weeks or even months before you get your refund.