Mary Reina Books

The science of a hurricane
The science of a hurricane

By Mary Reina

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The science of a hurricane
The science of a hurricane

By Mary Reina

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A tour of your respiratory system
A tour of your respiratory system

By Mary Reina

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"In graphic novel format, follows Molly and Ollie Oxygen as they travel through and explain the workings of the human respiratory system"--

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Tour of Your Respiratory System
First Graphics
First Graphics
A tour of your respiratory system
A tour of your respiratory system

By Mary Reina

Average: 0.00, 0 Ratings

"In graphic novel format, follows Molly and Ollie Oxygen as they travel through and explain the workings of the human respiratory system"--

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Save Money
Save Money

By Mary Reina

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Spend Money
Spend Money

By Mary Reina

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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.

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