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


Comic Book Marketplace Yearbook 2015-2016 has arrived in our warehouse, and shipping will begin on Tuesday 10/6/15


Our next two upcoming books,The Overstreet Guide to Collecting Movie Posters, and The Overstreet Guide to Cosplay are available for preorder!


The Overstreet Comic Book Price Guide 45th Edition is now available, with 4 different spectacular covers! 

Also available is the large spiral-bound Big Big workbook edition with yet another all-new cover! 

This year's regular editions have been selling through at unprecedented levels, with 3 of the 4 hardcover editions already sold out, and 2 of the 4 softcover editions are sold out as well! Get yours before they're gone!



Featured products

The Overstreet Guide To Cosplay

Available November 25, 2015

From $15.00

The Overstreet Guide To Collecting Movie Posters

Available October 21, 2015


The Overstreet Guide to Grading Comics

The latest edition of the industry-standard comic book grading guide, updated, expanded, reformatted, and retitled!


Overstreet's Comic Book Marketplace Yearbook 2015-2016

Second in a series of squarebound annuals.

From $12.95

The Big Big Overstreet Comic Book Price Guide #45

(2015) Cover by Kevin Eastman BACK IN STOCK!


The Overstreet Comic Book Price Guide #45 Golden Age Superman HC

(2015) Cover by Joe Shuster SOLD OUT!


The Overstreet Guide to Collecting Comics #1 – Valiant Edition

New Printing - Direct Market exclusive cover



Now available, but selling quickly!
Comic Book Marketplace - Thursday, May 23, 2013
Back issues are now available!
Autographed editions now available! - Thursday, May 23, 2013
Extremely limited quantities of artist-signed copies of the Comic Book Price Guide are now available