John Marron Books

Under the bridge of silence

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Poetry and prose by children of all ages selected from that done in workshops in California schools during 1985-1986, with some adult poems and essays on teaching poetry to children included.

Test Your Knowledge The Comprehensive Quiz Book

By John Marron

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These Changing Times a Moment in Time

By Loretta Larkin, Mario Giacalone, Susan Coleman, Denise Sunchild, John Marron

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Weaponized Ink s the Hammer and the Stake RPG

By Alicia Howell, John Marron, Jim Pinto, Chris Gunning

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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.