Christina Vrba Books

The Stable Cat s Christmas

By Christina Vrba

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Good Night Connecticut

By Christina Vrba

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Good Night Connecticut features Long Island Sound and the coast, tall ships of Mystic Seaport, Mystic Aquarium, Dinosaur State Park, Essex Steam Train, Mark Twain House and Museum, Lake Compounce,...

Good Night Connecticut

By Christina Vrba, Anne Rosen

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Good Night Connecticut

By Christina Vrba Anne Rosen

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This soothing nightime board book gives young readers an upfront and personal tour of the scenic state of Connecticut. Children quickly recognize their most cherished icons and landmarks including...

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.