Laura Marsh Books

Great Migrations Butterflies (National Geographic Kids Readers, Level 3)

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The monarch butterfly, one of the most seemingly delicate of all of nature’s animals, proves to be one of the toughest in this reader. Making the yearly trip from the Northern United States a...

Great Migrations Amazing Animal Journeys (National Geographic Kids Readers, Level 3)

By Laura Marsh

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Every year like clockwork, animals both big and small are driven by a natural instinct to move, in order to survive. On both land and sea, they fight the odds and the forces of nature to breed, fee...

Great Migrations Amazing Animal Journeys (National Geographic Kids Readers, Level 3)

By Laura Marsh

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Great Migrations Elephants (National Geographic Kids Readers, Level 3)

By Laura Marsh

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This exciting reader follows the story of the longest and the most demanding elephant migration on the planet. Living at the furthest corners of the hot and dry Sahara Desert, the very margins of w...

Great Migrations Elephants (National Geographic Kids Readers, Level 3)

By Laura Marsh

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Great Migrations Whales (National Geographic Kids Readers, Level 3)

By Laura Marsh

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Over the course of their 70-year lifespan, sperm whales will easily travel the circumference of the Earth in search of food and the need to breed and find a mate. Males will travel as far north as...

Great Migrations Whales (National Geographic Kids Readers, Level 3)

By Laura Marsh

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Over the course of their 70-year lifespan, sperm whales will easily travel the circumference of the Earth in search of food and the need to breed and find a mate. Males will travel as far north as...

Sea Turtles (National Geographic Kids Readers, Level 2)

By Laura Marsh

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Who could resist celebrating sea turtles? They may seem like lazy ocean reptiles drifting with the oceans’ currents, but they are actually long-distance swimmers that spend their entire lives...

Tigers (National Geographic Kids Readers, Level 2)

By Laura Marsh

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With their bold black stripes, powerful presence, and fierce faces, tigers are just about the coolest animal on the planet. These giant jungle cats can climb trees, swim, and run in sprints up to 3...

Tigers (National Geographic Kids Readers, Level 2)

By Laura Marsh

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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.