George Ulrich Books

Rude Rowdy Rumors: A Brian and Pea Brain Mystery

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Seven-year-old Brian enlists the help of his little sister Penny to discover which of his soccer teammates is spreading rude rumors about him.

Rude Rowdy Rumors: A Brian and Pea Brain Mystery

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The Gorgonzola Zombies in the Park

By Elizabeth Levy

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Sam and Robert make up a story about a Gorgonzola Zombie to scare their cousin Mabel, but strange and scary events convince all three that there really is a zombie haunting Central Park.

Rude Rowdy Rumors: Starring Brian and Pea Brain

By Elizabeth Levy

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String Games Booktivity

By Michelle Foerder

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The spook matinee

By George Ulrich

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A collection of short poems about such scary topics as ghosts, spiders, aliens, vampires, and horror movies.

Girl to girl

By Anne M. Driscoll

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Hilary's super secret

By Suzanne Williams

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Where the Sharks Are Rugrats

By Duncan Maxfield

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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.