Mahoney Daniel J. Books

De Gaulle

By Mahoney Daniel J.

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The Saturday escape

By Mahoney Daniel J.

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Three friends feel guilty about going to story hour at the library instead of doing what their parents told them to do.

The perfect clubhouse

By Mahoney Daniel J.

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When four friends decide to build the perfect clubhouse, they quickly discover that each has a different idea about what is perfect.

A really good snowman

By Mahoney Daniel J.

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Jack does not always appreciate his little sister's assistance, but comes to understand why she likes helping when she needs an extra set of paws to build her entry in the Shady Woods Snowman Contest.

Aleksandr Solzhenitsyn

By Mahoney Daniel J.

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Aleksandr Solzhenitsyn

By Mahoney Daniel J.

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The liberal political science of Raymond Aron

By Mahoney Daniel J.

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The liberal political science of Raymond Aron

By Mahoney Daniel J.

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La politique et l ame

By Giulio De Ligio, Jean Vincent Holeindre, Mahoney Daniel J.

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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.