Billy Aronson Books

The chicken problem

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When someone leaves the chicken coop open and 100 chickens escape, Peg and Cat use their math skills to solve the problem.

Scientific goofs

By Billy Aronson

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Presidents and Their Times Group 2

By Dan Elish, Susan Dudley Gold, Rose Blue, Wil Mara, Billy Aronson

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Abraham Lincoln

By Billy Aronson

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"Provides comprehensive information on President Abraham Lincoln and places him within his historical and cultural context. Also explored are the formative events of his times and how he responded"...

Peg Cat

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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How do Peg and Cat measure up? Mailing some important letters proves a tall order as the two friends learn about height.Peg’s mom has given her and Cat five important letters to mail. “...

Peg Cat The Camp Problem

By Jennifer Oxley, Billy Aronson

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Peg Cat

By Jennifer Oxley, Billy Aronson

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Discovery Phonics

By Billy Aronson

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Melia and Jo

By Jennifer Oxley, 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.