Michael O Hearn Books

Allosaurus vs brachiosaurus

Average: 0.00, 0 Ratings

In this series, readers learn all about their favourite prehistoric beasts, and then grab a front row seat to see what it would be like to watch them battle for victory.

Triceratops vs stegosaurus

By Michael O Hearn

Average: 0.00, 0 Ratings

In this series, readers learn all about their favourite prehistoric beasts, and then grab a front row seat to see what it would be like to watch them battle for victory.

Zombies vs. mummies

By Michael O Hearn

Average: 0.00, 0 Ratings

"Describes the features and abilities of zombies and mummies and how they may battle each other in a fight"--Provided by publisher.

Vampires vs. werewolves

By Michael O Hearn

Average: 0.00, 0 Ratings

"Describes the features and abilities of vampires and werewolves, and how they may battle each other in a fight"--Provided by publisher.

Vampires vs. werewolves

By Michael O Hearn

Average: 0.00, 0 Ratings

"Describes the features and abilities of vampires and werewolves, and how they may battle each other in a fight"--Provided by publisher.

Zombies vs. mummies

By Michael O Hearn

Average: 0.00, 0 Ratings

"Describes the features and abilities of zombies and mummies and how they may battle each other in a fight"--Provided by publisher.

Awesome space robots

By Michael O Hearn

Average: 0.00, 0 Ratings

"Describes various robots and robotic probes used to study space and explore extraterrestrial bodies"--Provided by publisher.

The El Dorado map

By Michael O Hearn

Average: 0.00, 0 Ratings

Awesome space robots

By Michael O Hearn

Average: 0.00, 0 Ratings

"Describes various robots and robotic probes used to study space and explore extraterrestrial bodies"--Provided by publisher.

Awesome space robots

By Michael O Hearn

Average: 0.00, 0 Ratings

"Describes various robots and robotic probes used to study space and explore extraterrestrial bodies"--Provided by publisher.

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.