Jack E. Davis Books

Hello Muddah, Hello Faddah: A Letter from Camp

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An illustrated version of the comical song in which a young summer camper describes all the horrors of Camp Granada and begs his parents to let him come home after only one day.

Here Comes T. Rex Cottontail

By Lois G. Grambling

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Through the medicine cabinet

By Dan Greenburg

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After Zack opens his medicine cabinet one morning and sees a boy who could be his double staring back at him, he enters a parallel universe.

Hoop Heroes

By Dan Greenburg, Jack E. Davis, J. Holub

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Bozo the Clone Zack Files

By Dan Greenburg

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Dr Jekyll Orthodontist Zack Files

By Dan Greenburg

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A Ghost Named Wanda Zack Files

By Dan Greenburg

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Never Trust A Cat Who Wears Earrings Turtleback School Library Binding Edition Zack Files Prebound

By Dan Greenburg

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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.