Harve Zemach Books

The judge

By Harve Zemach

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A skeptical judge discovers that the five people he had put in jail were telling the truth after all.

Awake and dreaming.

By Harve Zemach

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A young man is haunted by nightmares until a witch gives him a magic formula for untroubled sleep.

Duffy and the devil

By Harve Zemach

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The spinning and knitting the devil agrees to do for her win Duffy the Squire's name and a carefree life until it comes time for her to guess the devil's name.

Jake and Honeybunch go to heaven

By Margot Zemach

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The exuberance of a man and his mule newly arrived in heaven causes so much furor that God gives them one last chance before He throws them out.

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.