Karen Ritz Books

Kate Shelley and the Midnight Express
Rescue on the Outer Banks
Martha Washington
Martha Washington

By Candice Ransom, Karen Ritz

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Windows with birds
Windows with birds

By Karen Ritz

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A cat adjusts to its new home in an apartment, high above the ground, after living in a house.

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Betsy and Sal
Betsy and Sal

By Wanda Smith, Karen Ritz

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Hot Lunch
Hot Lunch

By Michele Dufresne, Karen Ritz

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Sadie Braves the Wilderness
Ghost of Popcorn Hill
Element of Programming Interview in Python

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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.

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