Rachel Ignotofsky Books

Women in Science 2020 Wall Calendar

By Rachel Ignotofsky

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Women in Science 2018 Wall Calendar: Fearless Pioneers Who Changed the World

By Rachel Ignotofsky

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What's Inside A Flower?

By Rachel Ignotofsky

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From the creator of the New York Times bestseller Women in Science, comes a new nonfiction picture book series ready to grow young scientists by nurturing their curiosity about the natural world--s...

What's Inside a Caterpillar Cocoon?

By Rachel Ignotofsky

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Discover the next nonfiction audiobook about butterflies and moths from the creator of the New York Times bestseller Women in Science!Butterflies soar in the sunlight. While moths flutter under the...

What's Inside a Garden?: Science and Nature Coloring Book

By Rachel Ignotofsky

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Explore all the wonders of the garden—birds, flowers, butterflies, and more—with this coloring book from New York Times bestselling author and artist Rachel Ignotofsky.Rachel Ignotofsky...

What's Inside a Garden? Stickerology

By Rachel Ignotofsky

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This sticker book features 40 sheets that celebrate everything in the garden, from butterflies and bees to birds in their nests, flowers, and more, from New York Times bestselling author and artist...

What's Inside A Bird's Nest?

By Rachel Ignotofsky

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Discover the next nonfiction picture book—adapted for audio—about eggs, nests, and birds from the creator of the New York Times bestseller Women in Science, Rachel Ignotofsky!Want to le...

Women in Science

By Rachel Ignotofsky

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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...

Dinosaurs

By Rachel Ignotofsky

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An entertaining, educational, and strikingly illustrated guide to Earth’s prehistoric eras and animals, from the New York Times bestselling author and illustrator of Women in Science.With an...

Dinosaurs

By Rachel Ignotofsky

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An entertaining, educational, and strikingly illustrated guide to Earth’s prehistoric eras and animals, from the New York Times bestselling author and illustrator of Women in Science.With an...

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.