Mark William Chase Books

Bards And Sages Quarterly

By Brian Kirk, Sarah Marie, Tim McDaniel, Simon Kewin, Mark William Chase, Milo James Fowler, Julie Ann Dawson, Jeff Suwak, Janie Brunson, Jeff Chapman, Richard Zwicker, Robert Collins - Undifferentiated, Craig Comer, Ned Thimmayya, Betty Rocksteady, Carrie Vaccaro Nelkin, Michelle Ann King, James K. Isaac

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Since 2009, Each Issue Of The Bards And Sages Quarterly Has Delivered A Unique Variety Of Character-driven Speculative Fiction Short Stories From Both New And Established Writers. Our Writers Inclu...

Bards And Sages Quarterly

By Mark William Chase, Milo James Fowler, Julie Ann Dawson, Jeff Suwak, Janie Brunson, Richard Zwicker, Craig Comer, Ned Thimmayya, Betty Rocksteady, Michelle Ann King

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Ouroboros Lock

By Mark Chase

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Case Files of Aldicus Vescard

By Mark Chase

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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.