Peter McWilliams Books

Life 101

By Peter McWilliams

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You Can t Afford the Luxary of a Negative Thought

By Peter McWilliams

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BAD CHEMISTRY (HARDY BOYS CASE FILE 110): BAD CHEMISTRY (Hardy Boys Casefiles)

By Peter McWilliams, Franklin W. Dixon

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All the evidence of a murder in a chemistry lab points to the new chemistry teacher at Bayport High. Joe Hardy is convinced that she was set up and that she is the one in danger.

Life 101

By John Roger MacWilliams, Peter John Roger And Mcwilliams

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You Can t Afford the Luxury of a Negative Thought

By Peter McWilliams And John Roger McWilliams And John Roger

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Do It

By Peter McWilliams, John Roger

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Life 101

By Peter McWilliams, John Roger

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Wealth 101

By Peter McWilliams, John Roger

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Love 101

By Peter McWilliams

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Word processing book

By Peter McWilliams

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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.