Alvin Granowsky Books

Dinosaurs of all sizes

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Describes the various sizes of dinosaurs, including Tyrannosaurus Rex, Diplodocus, and Brontosaurus, as well as some dinosaurs that were as small as dogs.

Dinosaur fossils

By Alvin Granowsky

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Explains the significance of dinosaur fossils and the work of paleontologists.

Meat-eating dinosaurs

By Alvin Granowsky

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Describes a variety of carnivorous dinosaurs, including the Ornitholestes and Tyrannosaurus.

World of Dinosaurs

By Alvin Granowsky

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What Is a Dinosaur World of Dinosaurs

By Alvin Granowsky

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Dinosaurs that ate meat

By Alvin Granowsky

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Describes the various dinosaurs which hunted other animals, Allosaurus, Ceratosaurus, Stenonychosaurus, Baryonyx, Ornitholestes, Tyrannosaurus, Camptosaurus, Protoceratops, Velociraptor.

A Dinosaur Battle World of Dinosaurs

By Alvin Granowsky

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When an Allosaurus Was Hungry World of Dinosaurs

By Alvin Granowsky

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How Do We Know About Dinosaurs World of Dinosaurs

By Alvin Granowsky

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Putting a Dinosaur Together World of Dinosaurs

By Alvin Granowsky

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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.