Betty G. Birney Books

Humphrey s Pet Show Panic Humphrey s Tiny Tales

By Betty G. Birney

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Humphrey's Pet Show Panic

By Betty G. Birney Illustrated By Priscilla Burris

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Humphrey is the favorite pet in Room 26, but will he also be a favorite at the pet show? Find out in this sixth book in the popular chapter book series.When A.J. brings Humphrey to the town pe...

Life According to Og the Frog

By Betty G. Birney

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The adventure continues in Room 26 with Humphrey's frog-tastic best friend, Og the Frog!     Og the Frog has just moved into Room 26, and the place is hopping. There are lively...

Exploring According to Og the Frog

By Betty G. Birney

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In the second book in the Og the Frog spinoff of the Humphrey series, Og is ready for adventure and is jumping at the chance to help kids be brave!Og loves the kids in Room 26, but he's awfully cur...

Exploring According to Og the Frog

By Betty G. Birney

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Og is ready for adventure and hopping at the chance to help kids be brave in the second book in the Og the Frog series, now in paperback!Og loves the kids in Room 26, but he's awfully curious about...

Life According to Og the Frog

By Betty G. Birney

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Amistad de Acuerda a Humphrey

By Betty G. Birney

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Adventure According to Humphrey

By Betty G. Birney

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Humphrey s Big Birthday Bash

By Betty G. Birney

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Humphrey s Treasure Hunt Trouble

By Betty G. Birney

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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.