Charles Ghigna Books

One Hundred Shoes

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Centipede has one hundred feet. One hundred feet means one hundred shoes. How in the world does Centipede choose shoes? This Math Reader clearly demonstrates the concepts of pairs and multiple se...

One Hundred Shoes

By Charles Ghigna O Father Goose, Charles Ghigna

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Considers what kinds of shoes a centipede might wear and how he might shop for them.

SEE THE YAK YAK

By Charles Chigna

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Mice are nice

By Charles Ghigna

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Simple rhyming text extolls the virtures of mice as the perfect pet.

Halloween nights

By Charles Ghigna

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This collection of 21 silly, funny, just slightly scary poems about witches, monsters, pumpkins, gargoyles, and trick-or-treating will elicit delighted giggles from children who are just beginning...

Snow wonder

By Charles Ghigna

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Two children celebrate a wonderful wintry day by playing in the snow, sledding, building snow people, baking cookies, and ice skating.

Barn Storm

By Charles Ghigna

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Mice Are Nice

By Charles Ghigna

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Mice Are Nice

By Charles Ghigna O Father Goose

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One Hundred Shoes

By Charles Ghigna O Father Goose

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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.