Sudipta Bardhan Quallen Books

Snoring Beauty

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This picture book is a new spin on SLEEPING BEAUTY told from the perspective of a little mouse who can't get to sleep because of the princess's very loud snoring. "A new spin on "Sleeping Beauty"...

Snoring Beauty

By Sudipta Bardhan Quallen

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This picture book is a new spin on SLEEPING BEAUTY told from the perspective of a little mouse who can't get to sleep because of the princess's very loud snoring. "A new spin on "Sleeping Beauty"...

The United States v. Jackie Robinson

By Sudipta Bardhan Quallen

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The United States v. Jackie Robinson

By Sudipta Bardhan Quallen, R. Gregory Christie

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Championship science fair projects

By Sudipta Bardhan Quallen

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Purrmaids 5

By Sudipta Bardhan Quallen

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The Mine O Saur by Sudipta Bardhan Quallen

By Sudipta Bardhan Quallen

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Chicks run wild

By Sudipta Bardhan Quallen

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When her little chicks refuse to settle down for the night, Mama decides to surprise them with an unusual request.

Chicks run wild

By Sudipta Bardhan Quallen

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When her little chicks refuse to settle down for the night, Mama decides to surprise them with an unusual request.

Orangutangled

By Sudipta Bardhan Quallen

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Two orangutans jump to grab mangoes, and land in an orangu-tangle. It's gummy and gooey, and grows gummier and gooier as other animals join the mess. How are they are all going to get cleaned up?

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.