Mordicai Gerstein Books

Mistaken for a fish by a nearsighted pelican and deposited with a family of ducks, young Arnold learns to swim, fly, and eat like a duck until his curiosity finally leads him back to his human family.

Arnold of the Ducks

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The gigantic baby

By Mordicai Gerstein

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The more a baby cries, the more she grows, until her brother thinks of a way to reverse the process and turn his gigantic sister into a normal-sized infant.

The Gigantic Baby

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The Mountains of Tibet

By Mordicai Gerstein

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After dying, a Tibetan woodcutter is given the choice of going to heaven or to live another life anywhere in the universe.

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.