Jim Heimann Books

The Golden Age of Advertising the 50s

By Jim Heimann

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Hula Honeys Fold and Mail Stationery

By Jim Heimann

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"At the beginning of the automobile age, in that most car crazy of places, Southern California, roadways were dotted with eye-catching beacons for travelers. Diners shaped like chili bowls, pigs, a...

Hula Honeys Coasters Hula Honeys

By Jim Heimann

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Hula Honeys 2005 Wall Calendar

By Jim Heimann

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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.