Billy Aronson Books

Peg Cat

By Jennifer Oxley, Billy Aronson

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Peg Cat: The Lemonade Problem

By Jennifer Oxley, Billy Aronson

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When life gives them a problem to solve, Peg and Cat make lemonade — and get a lesson in bartering — in a refreshing math adventure.It’s a hot day, so what could be cooler than se...

Peg Cat: The Pirate Problem: A Level 2 Reader

By Jennifer Oxley, Billy Aronson

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Can Peg and Cat keep the peace among some hungry pirates? Figuring out how to divvy up a pile of peaches turns into a handy lesson on fair sharing.When Peg and Cat encounter hungry pirates by the s...

Peg Cat The Pirate Problem A Level 2 Reader

By Jennifer Oxley, Billy Aronson

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Peg Cat The Big Dog Problem A Level 2 Reader

By Jennifer Oxley, Billy Aronson

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Peg Cat The Camp Problem

By Jennifer Oxley, Billy Aronson

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Romeo and Juliet

By Billy Aronson

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Something Is Strange About Paula s Friends

By Billy Aronson

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Discovery Phonics

By Billy Aronson

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First Day Of School

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.