Gerry Bailey Books

Tylosaurus

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This book tells the story of Tylosaurus, which swam in the prehistoric seas between 87 and 82 million years ago. It was a fierce marine reptile that used its sharp teeth and huge jaws to feed on sh...

Tyrannosaurus rex

By Gerry Bailey

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Realistic illustrations highlight this story about a day in the life of the mighty Tyrannosaurus rex. Created in collaboration with the Smithsonian Institution, information sections give all the vi...

Woolly mammoth

By Gerry Bailey

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Realistic illustrations highlight this story about a day in the life of the woolly mammoth. Created in collaboration with the Smithsonian Institution, information sections give all the vital statis...

Ankylosaurus

By Gerry Bailey

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This book tells the story of Ankylosaurus. This armored beast looked like a walking tank. It lived during the Cretaceous period between 100 and 65 million years ago and fed on plant material. At th...

Apatosaurus

By Gerry Bailey

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Realistic illustrations highlight this story about a day in the life of the enormous Apatosaurus. Created in collaboration with the Smithsonian Institution, information sections give all the vital...

Parasaurolophus

By Gerry Bailey

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Realistic illustrations highlight this story about a day in the life of the Parasaurolophus. Created in collaboration with the Smithsonian Institution, information sections give all the vital stati...

Pteranodon

By Gerry Bailey

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This book tells the story of Pteranodon. During the late Cretaceous period, between 89 and 80 million years ago, one of the largest flying reptiles to exist flew in the skies. Its large wingspan an...

Sabre-tooth tiger

By Gerry Bailey

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Realistic illustrations highlight this story about a day in the life of the powerfully built sabre-tooth tiger. Created in collaboration with the Smithsonian Institution, information sections give...

Triceratops

By Gerry Bailey

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Realistic illustrations highlight this story about a day in the life of Triceratops, a dinosaur that was heavier than a present day elephant. Created in collaboration with the Smithsonian Instituti...

Tylosaurus

By Gerry Bailey

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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.