Richard Groller Books

Sha Daa PAWNS Volume 3

By Arthur Sanchez, Paul Barrett, Larry Jr. Atchley, Mallory Makepeace, John Manning, Michael D. Gfittiths, Jamie K. Schmidt, Sarah Wagner, Jason Cordova, Diane Arrelle, Bruce Durham, Jeff Barnes, Michael H. Hanson, Deborah Koren, Leona Wisoker, Richard Groller

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Doctors in Hell Heroes in Hell

By Joe Bonadonna, Nancy Asire, Janet Morris, Matthew Kirshenblatt, R.E. Hinkle, Chris Morris, Bill Snider, Andrew P. Weston, Paul Freeman, Jack William Finley, Michael H. Hanson, Deborah Koren, Richard Groller

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Dreamers in Hell

By Michael A. Ventrella, Janet Morris, Tom Barczak, Petra Jorns, Manning John, Shebat Legion, Jason Cordova, Jack William Finley, Bettina S. Meister, Richard Groller

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The Book of Night Poems of The Macabre

By Janet Morris, Allan Gilbreath, Jillian Perkins, Kimberly Richardson, Lori Martin, Dean M. Drinkel, Chris Morris, Larry Atchley Jr., Louis Agresta, Richard D. Evans, Bill Snider, Kurt Newton, Jack William Finley, Jeff Barnes, Michael H. Hanson, Angel Weaver, Richard Groller

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Sha Daa Inked

By Arthur Sanchez, Jordanne Fuller, C. J. Henderson, Shebat Legion, Edward McKeown, Christopher L. Smith, Michael H. Hanson, Leona R. Wisoker, Richard Groller, Vivian Caethe

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.