Carolyn Cinami Decristofano Books

A black hole is not a hole

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Introduces black holes, describing their physical features, how they were discovered, what causes them, and where they exist in space.

Leonardo s ABC

By Carolyn Cinami Decristofano

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Big Bang

By Carolyn Cinami Decristofano

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Big Bang The Tongue Tickling Tale of a Speck That Became Spectacular

By Carolyn Cinami Decristofano

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Big Bang!

By Carolyn Cinami DeCristofano Author Michael Carroll Illustrator

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Billions of years ago, everything in the universe was crunched up into a tiny speck that was smaller than the period at the end of this sentence. How did this little speck become the universe we kn...

The Sun And The Moon

By Taia Morley, Carolyn Cinami Decristofano

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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.