Hana Machotka Books

Pasta Factory

By Hana Machotka

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Depicts a trip to the Tutta Pasta factory in New York City.

What neat feet

By Hana Machotka

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Describes the foot of a swan, seal, rabbit, goat, cat, camel, and elephant, and explains how the distinctive design of each helps the animal survive in its environment.

Terrific Tails

By Hana Machotka

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Describes different kinds of tails and how they are used by such animals as peacocks, dogs, monkeys, and beavers.

Terrific Tails

By Hana Machotka

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The Magic Ring

By Paul Binder, Hana Machotka

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Briefly surveys the history of circuses and describes the growth, rehearsals, performances, and personnel of the successful one-ring circus known as the Big Apple Circus.

What Do You Do at a Petting Zoo

By Hana Machotka

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What Do You Do at a Petting Zoo

By Hana Machotka

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What Neat Feet!

By Hana Machotka

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Describes the foot of a swan, seal, rabbit, goat, cat, camel, and elephant, and explains how the distinctive design of each helps the animal survive in its environment.

What neat feet!

By Hana Machotka

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Describes the foot of a swan, seal, rabbit, goat, cat, camel, and elephant, and explains how the distinctive design of each helps the animal survive in its environment.

Breathtaking noses

By Hana Machotka

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Examines the noses of a variety of different animals and describes how they function.

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.