Peter Leonard Books

Sociology and Social Work Library of Social Work

By P. Leonard

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Unknown remains

By Peter A. Leonard

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"Jack McCann is a high-stakes Wall Street trader who sneaks into his office early one morning to try and clear out his things and get out of dodge; he knows he's in trouble, deep legal trouble, a f...

Unknown Remains

By Peter Leonard

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Jack McCann is a high–stakes Wall Street trader who sneaks into his office early one morning to try and clear out his things and get out of dodge; he knows he's in trouble, deep legal trouble...

Sweet Dreams

By Peter Leonard

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Pisano Paranormal

By Peter Leonard

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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.