Christopher Santoro Books

Scenes of daily life include objects in the shape of circles, squares, triangles, octagons, spheres, cubes, cylinders, and ovoids. On heavy board pages.

It s Haunted

By Christopher Santoro

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First Cookbook for Children

By Christopher Santoro, Evelyn Johnson

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Open the Barn Door, Find a Cow

By Christopher Santoro

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From the creator of OPEN THE GARAGE DOOR comes the hit lift-the-flap board book all about your favorite farm animals!Spend a day on the farm and explore all the animal sights and sounds! Fea...

OPEN CEREAL BOX FIND A PRIZE

By Christopher Santoro

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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.