Christina Johnson Books

Blue Whales And Other Baleen Whales World Book s Animals of the World

By Christina Johnson

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Blue whales and other baleen whales

By Christina Johnson

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This book introduces young readers to the world of blue whales and baleen whales. It explains why they get so big, what a baby whale's life is like, and how scientists study whales and their habit...

Lobsters and other crustaceans

By Christina Johnson

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This book introduces young readers to the world of lobsters and other crustaceans, explaining the differences between shrimp and crayfish, what they eat, and the dangers crustaceans face in their h...

Love Language

By Christina Johnson

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CEO at 20

By Edward Gothard J.D., Shayna Gothard Kaufmann Ph.D., Christina Johnson, Ben Gothard

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Student Solutions Manual for Chemical Principles

By Carl Hoeger, Laurence Lavelle, Yinfa Ma

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Esperanza

By Christina Johnson

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Hidden History of Monmouth County

By Rick Geffken, Muriel J. Smith, Christina Johnson, Allan Dean

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Hidden History of Monmouth County

By Rick Geffken, Muriel J. Smith, Christina Johnson, Allen Dean

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Cuckoo for Coconuts

By Christina Johnson, Iggy Larrea

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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.