Peggy Rathmann Books

Buenas noches, Gorila
Buenas noches, Gorila

By Peggy Rathmann

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This favorite bedtime book is now available for Spanish speaking and bilingual babies and toddlers

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10 Minutos y a la cama
10 Minutos y a la cama

By Peggy Rathmann

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10 minutes till bedtime
10 minutes till bedtime

By Peggy Rathmann

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A boy's hamster leads an increasingly large group of hamsters on a tour of the boy's house, while his father counts down the minutes to bedtime.

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Ruby The Copycat
Ruby The Copycat

By Peggy Rathmann

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Ruby The Copycat Library
Ruby The Copycat Library

By Peggy Rathmann

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Ruby the copycat
Ruby the copycat

By Peggy Rathmann

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Ruby insists on copying Angela, until her teacher helps her discover her own creative resources.

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Ruby the Copycat
Ruby the Copycat

By Peggy Rathmann

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Ruby mono ve mono hace
Ruby mono ve mono hace

By Peggy Rathmann

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Ruby insists on copying Angela, until her teacher helps her discover her own creative resources.

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Good Night Gorilla Mathematics Focus
Ruby the Copycat
Ruby the Copycat

By Peggy Rathmann

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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.

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