Kristin O Donnell Tubb Books

The Story Collector

By Kristin O Donnell Tubb, Brittany Pressley

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The 14th Sign

By Kristin O Donnell Tubb

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On her thirteenth birthday, Jalen unwittingly brings the twelve signs of the zodiac to life through a mysterious old book, and soon she, her friend Ellie, and Ellie's brother, Brennan, are battling...

The 13th Sign

By Kristin O Donnell Tubb

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Sunny Days Holly Hobbie Friends

By Kristin O Donnell Tubb

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Craft Corner Art Studio Holly Hobbie Friends

By Kristin O Donnell Tubb

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Luna Howls at the Moon

By Kristin O Donnell Tubb

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Luna Howls at the Moon

By Kristin O Donnell Tubb

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Luna Howls at the Moon

By Kristin O Donnell Tubb

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Luna Howls at the Moon

By Kristin O Donnell Tubb

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Zeus Dog of Chaos

By Kristin O Donnell Tubb

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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.