Gregory King Books

The Emperor of Time

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A boy has wasted so much time on trivial matters that an emissary from the Emperor of Time tells him that he has only three more days to live. Then poof. The boy embarks upon a perilous journey to...

The Emperor of Time

By Gregory King

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A boy has wasted so much time on trivial matters that an emissary from the Emperor of Time tells him that he has only three more days to live. Then poof. The boy embarks upon a perilous journey to...

Visitation of the County of Worcester Begun by Thomas May Chester and Gregory King Rouge Dragon in Trinity Vacacon 1682 and Finished by Henry Dethick Richmond and the Said Rouge Dragon Pursuivant in Trinity Vacacon 1683 by Virtue of Sever

By Gregory King, Thomas Phillips, Thomas May

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Visitation of the County of Worcester Begun by Thomas May Chester and Gregory King Rouge Dragon in Trinity Vacacon 1682 and Finished by Henry Dethick Richmond and the Said Rouge Dragon Pursuivant in Trinity Vacacon 1683 by Virtue of Sever

By Gregory King, Thomas Phillips, Thomas May

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Warwickshire Pedigrees

By Gregory King, Thomas May

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Warwickshire Pedigrees

By Gregory King, Thomas May

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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.