Andrew Theising Books

East St. Louis

By Bill Nunes, Andrew Theising, Bill Nunes And Andrew Theising

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On April 1, 1861, the people in the village known as "Illinoistown" went to the polls to choose a new name. On that day, with 183 votes for and 89 votes against, the map had a new place--a bustling...

Hemingway'S Saint Louis: How St. Louisans Shaped His Life And Legacy

By Andrew J. Theising, Andrew Theising

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East St. Louis

By Bill Nunes, Andrew Theising

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In The Walnut Grove

By Andrew J. Theising, Andrew Theising, Carol Daniel

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East St Louis

By Andrew Theising

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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.