Gregory Wenzel Books

Feathered Dinosaurs of China

By Gregory Wenzel

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Feathered Dinosaurs of China

By Gregory Wenzel

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Giant Dinosaurs of the Jurassic

By G Wenzel

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Feathered Dinosaurs of China

By Gregory C. Wenzel

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Feathered Dinosaurs of China

By Gregory Wenzel Author Illustrator

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Step back in time 124 million years to Liaoning, China, and see what life was like in this ancient ecosystem. Follow several recently discovered dinosaur species through a typical day, as they feed...

Giant Dinosaurs of the Jurassic

By Gregory C. Wenzel

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Diver Dinos

By Michael Burgan, Bernard Adnet, Gregory Wenzel

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Giant Dinosaurs of the Jurassic

By Gregory C. Wenzel

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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.