Sara Pennypacker Books

My Enemy's Cradle

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Takes us into the very heart of the Nazis' cradle with a powerful story of love set against the true events of one of the most secret and terrifying of Heinrich Himmler's wartime projects - the Leb...

Flat Stanley's Worldwide Adventures 4: The Intrepid Canadian Expedition

By Sara Pennypacker

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While acting as a snowboard, Stanley Lambchop gets carried away by a strong wind, sending him and his new friend Nick on a cross-country Canadian adventure.

Pax

By Sara Pennypacker

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Pax CD

By Sara Pennypacker

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Pax

By Sara Pennypacker

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Pax Journey Home

By Sara Pennypacker, Jon Klassen

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Here in the Real World CD

By Sara Pennypacker, Noah Galvin

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Pax Journey Home

By Sara Pennypacker, Jon Klassen

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Pax 2 Book Box Set

By Sara Pennypacker

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Leeva at Last

By Matthew Cordell, Sara Pennypacker

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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.