Sarah Machajewski Books

My Dad Is a Nurse

By Sarah Machajewski

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Mark Pincus and Zynga

By Sarah Machajewski

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Internet Biographies Set 2

By Don Rauf, Sheena Ganchinello, Erin Staley, Sarah Machajewski, Ann Byers

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Freshwater or Salt Water

By Sarah Machajewski

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Animals on the move

By Sarah Machajewski

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Understanding the principles of base ten is essential to understanding numbers and operations. Students will become familiar with the concept of place value through engaging narratives and real-lif...

Cockroaches

By Sarah Machajewski

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Cockroaches

By Sarah Machajewski

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Cockroaches

By Sarah Machajewski

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Malcolm X in his own words

By Sarah Machajewski

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An introduction to the life of the civil rights activist Malcolm X.

Death rituals

By Sarah Machajewski

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This text provides an age-appropriate examination of death rituals from cultures both ancient and modern.

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.