Gordon Kerr Books

Spree killers

By Rodney Castleden

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Poetry Writers Yearbook 2007 Poetry Writers Yearbook

By Gordon Kerr

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100 Art Deco Fashion Masterpieces

By Gordon Kerr

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Timeline of kings and queens

By Gordon Kerr

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"Timeline of Kings and Queens" explores the evolving concept of monarchy, through the lives of some of the most powerful and fascinating individuals who ever lived.

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.