Katharine Kenah Books

Eggs over Easy

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When Sam cares for some abandoned duck eggs, he learns something about his father, who moved out but still writes him weekly.

The Best Teacher in Second Grade

By Katharine Kenah, Abby Carter

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The best chef in second grade

By Katharine Kenah

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A famous chef is coming to visit Mr. Hopper's second grade class, and every one is excited about bringing in their family's favorite dish to share except Ollie, who loves to cook but cannot find a...

The best chef in second grade

By Katharine Kenah

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A famous chef is coming to visit Mr. Hopper's second grade class, and every one is excited about bringing in their family's favorite dish to share except Ollie, who loves to cook but cannot find a...

The Saturday Triplets in Lost in the Leaf Pile

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The Pumpkin Fair problem

By Katharine Kenah

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Triplets Ana, Bella and Carlos have to stick together at the Pumpkin Fair. But no one wants to do the same thing! Who will win?

The Saturday Triplets in Teacher Trouble

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Tiny Terrors

By Katharine Kenah

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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.