Billy Aronson Books

Math in the Bath

By Jennifer Oxley, Billy Aronson

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Peg Cat

By Jennifer Oxley, Billy Aronson

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Peg Cat Math in the Bath

By Jennifer Oxley, Billy Aronson

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Peg Cat Math in the Bath

By Jennifer Oxley, Billy Aronson

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Peg Cat: Peg Up a Tree: A Level 1 Reader

By Jennifer Oxley, Billy Aronson

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What goes up must come down — somehow — as Peg gets stuck high in a tree and Cat and Ramone try to come to the rescue.Peg has a BIG PROBLEM. She is up in a tree with her yo-yo and can&#...

Scientific goofs

By Billy Aronson

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They came from DNA

By Billy Aronson

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Explains genetics and how DNA works through imaginary newspaper columns, letters from parent to child, and other scenarios.

Iste Dunya

By Billy Aronson

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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.