Kass Morgan Books

The 100

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When 100 juvenile delinquents are sent on a mission to recolonize Earth, they get a second chance at freedom, friendship, and love, as they fight to survive in a dangerous new world. When one hund...

Day 21

By Kass Morgan

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It's been 21 days since the hundred landed on Earth. They're the only humans to set foot on the planet in centuries ... or so they thought. Facing an unknown enemy, the hundred struggle to survive...

No one has set foot on Earth in centuries -- until now. It's been 21 days since the hundred landed on Earth. They're the only humans to set foot on the planet in centuries...or so they thought. Fac...

Day 21

By Kass Morgan

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Rebellion

By Kass Morgan

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Rebellion The 100 Series Book 4

By Kass Morgan

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Rebellion

By Kass Morgan

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Having been appointed the leaders of their people a month after the dropships land, Clarke, Bellamy, Wells and Glass are pushed to the limit as they fight for survival against an unprecedented new...

The 100 Complete Boxed Set

By Kass Morgan

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The Monarchs

By Kass Morgan, Danielle Paige

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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.