Rachel Ignotofsky Books

Women in Science

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NEW YORK TIMES BESTSELLER • This “wittily illustrated [and] accessible volume” (The Wall Street Journal) highlights the contributions of fifty notable women to the fields...

Women in Sports

By Rachel Ignotofsky

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A richly illustrated and inspiring book highlighting the achievements and stories of fifty notable women athletes from the 1800s to today, by the New York Times bestselling author of Women in Scien...

Women in Science: 100 Postcards

By Rachel Ignotofsky

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Gorgeous illustrations of fifty fearless female pioneers who changed the world—with duplicates of each postcard Collecting the fifty most iconic illustrations from the book Women in...

Women in Sports

By Rachel Ignotofsky

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I Love Science

By Rachel Ignotofsky

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A guided journal based on Rachel Ignotofsky's New York Times bestselling book Women in Science: 50 Fearless Pioneers Who Changed the World.Full of writing, drawing, and creativity prompts, I L...

The History of the Computer

By Rachel Ignotofsky

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A strikingly illustrated overview of the computing machines that have changed our world—from the abacus to the smartphone—and the people who made them, by the New York Times bestse...

The Wondrous Workings of Planet Earth 2020 Wall Calendar

By Rachel Ignotofsky

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From the ingenious mind of Rachel Ignotofsky, author and illustrator of the New York Times best-selling book, Women in Science, comes The Wondrous Workings of Planet Earth 2020 Wall Calendar, an il...

The History of the Computer

By Rachel Ignotofsky

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A strikingly illustrated overview of the computing machines that have changed our world—from the abacus to the smartphone—and the people who made them, by the New York Times bestse...

What s Inside a Flower

By Rachel Ignotofsky

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What s Inside a Caterpillar Cocoon

By Rachel Ignotofsky

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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.