Jean Warmbold Books

The tumble-down tower

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After building a tower in what he thinks is an empty meadow, a king discovers that he has encroached on the home of many small, unseen creatures.

The Gob-Gob-Goblin's feast

By Jean Warmbold

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When a goblin and a dragon decide to move into the cave where the birds and beasts hold their annual feast, the animals decide that they don't like the newcomers without ever meeting them.

June mail

By Jean Warmbold

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Begin with one freelance journalist hellbent on getting her story. Add one charismatic and internationally renowned genetic engineer who claims to have developed the first viable AIDS vaccine. Mix...

The White Hand

By Jean Warmbold

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The Third Way

By Jean Warmbold

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Late Nights on Venus

By Jean Warmbold

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Dead Man Running

By Jean Warmbold

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The white hand.

By Jean Warmbold

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Dead man running

By Jean Warmbold

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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.