Ann Hodgman Books

I Saw Mommy Kicking Santa Claus

By Ann Hodgman

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I Saw Mommy Kicking Santa Claus 8 copy counter

By Ann Hodgman

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Night of a thousand pizzas

By Ann Hodgman

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When the computer in Hollis Elementary School's new cafeteria is accidentally programmed to make one thousand instead of one hundred pizzas, the students help find a way to use all the leftovers.

Lunchroom 2 frog Pun Lunchroom No 2

By Ann Hodgman

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Lunchroom 3 cookie (Lunchroom, No 3)

By Ann Hodgman

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Lunchroom 4 french Lunchroom No. 4

By Ann Hodgman

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Lunchroom 5 rubberma (Lunchroom, No 5)

By Ann Hodgman

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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.