Marissa Walsh Books

Girl with Glasses

By Jason Logan, Marissa Walsh

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Girl with Glasses

By Marissa Walsh

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A Field Guide to High School

By Marissa Walsh

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Not Like I'm Jealous or Anything

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We’ve all been there. We’ve all felt that pang. It’s hard to stop the “green-eyed monster” once it rears its ugly head. We asked 13 writers to share their visions of jealousy and this collection of...

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.