Michael Anne Johns Books

An unauthorized biography of Aaron Carter which features a checklist of facts about him, including that he loves the Harry Potter books, and his answers to fifty-three serious and silly questions,...

Hangin with Aaron Carter

By Michael Anne Johns

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Photos and text describe the life of Aaron Carter, including his daily routine and life with his family, lists of his favorite things, and facts about his acting and singing careers.

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.