Cynthia Alvarez Books

Hercules Leg Jour

By Cynthia Alvarez

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Hercules Leg Jour

By Cynthia Alvarez

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The Candyland Mystery

By Cynthia Alvarez, Bobbi Barto

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When the wicked Lord Licorice casts a spell that makes King Kandy's castle disappear, the Candy Land Kids must use their noses to find the cinnamon scent that will lead them to the king.

Reindeer baby

By Cynthia Alvarez

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Professor Pipsqueak's guide to birds

By Cynthia Alvarez

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Professor Pipsqueak's guide to bugs

By Cynthia Alvarez

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Fuzzytail Farm

By Cynthia Alvarez

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Farmer Sue feeds the pigs, milks the cows, and cuts off the sheep's winter coat while other farm animals and objects hide under flaps on pages.

Ace Ventura

By Cynthia Alvarez

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Pet detective Ace Ventura is hired by the Miami Dolphins to locate their mascot Snowflake, a rare bottle-nose dolphin who was kidnapped just before the Superbowl.

Stop That Volcano

By Cynthia Alvarez

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Genetic meltdown

By Cynthia Alvarez

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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.