Mary DeBall Kwitz Books

Little Chick's Friend Duckling

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While wondering if they will remain best friends after Broody Hen's six eggs hatch, Little Chick and Duckling investigate several big, scary things on the farm.

Little Chick's Friend Duckling

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Little Chick's big day

By Mary DeBall Kwitz

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Little Chick ventures away from her mother and discovers the wonders of the world beyond home.

Little Chick's Big Day

By Mary DeBall Kwitz

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Little Chick ventures away from her mother and discovers the wonders of the world beyond home.

Little Chick's Breakfast

By Mary DeBall Kwitz

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Little Chick becomes hungrier and hungrier and more and more impatient as she watches all the other barnyard animals getting their breakfast before she gets hers.

Little Chick's Friend Duckling

By Mary DeBall Kwitz

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Gumshoe Goose Private Eye

By Mary DeBall Kwitz

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Little Vampire and the Midnight Bear

By Mary DeBall Kwitz

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Whose Baby

By Mary Deball Kwitz

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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.