Kris Hirschmann Books

Bridges

By Kris Hirschmann

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Bats

By Kris Hirchmann, Kris Hirschmann

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Learn fascinating facts about bats, such as the different types of bats, how they use echolocation, and how they migrate and hibernate. No one teaches science like Ms. Frizzle, and now you can read...

Hello Kitty stationery activity book

By Kris Hirschmann

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Hello Kitty beads activity book

By Kris Hirschmann

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Math magic

By Kris Hirschmann

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"Candy + magic = fun! Do you know how to multiply? With Necco Math magic, you're ready to try! Math was never this sweet before. It's candy heart subtraction, addition, and more!"

Space and the Planets

By Kris Hirschmann

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The kids in Ms. Frizzle's class share what they learned during their unit on space and the planets.

Oh baby!

By Kris Hirschmann

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Birth announcements and riddles provide clues to the identity of seven animals born at the Bronx Zoo, with activities to allow readers to learn more about each creature.

Rocks and minerals

By Kris Hirschmann

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Ants Bees and Other Social Insects

By Kris Hirschmann

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Fossils

By Kris Hirschmann

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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.