Sarah Mlynowski Books

Sink or swim

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Once again Abby and her brother Jonah go through the magic mirror in their basement, and this time they find themselves interfering in the Little Mermaid story--and needing to set things right and...

Bad hair day

By Sarah Mlynowski

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On their fifth trip through the magic mirror, siblings Abby and Jonah find themselves in the story of Rapunzel--and they set out to free her from her tower, reunite her with her parents, and give t...

Whatever after bad hair day

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Cold As Ice Whatever After 6

By Sarah Mlynowski

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Whatever After

By Sarah Mlynowski

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James D. Julia inc. presents extraordinary firearms auction October 1 2

By James D. Julia

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Once Upon a Frog Whatever After 8

By Sarah Mlynowski

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Abby in Wonderland

By Sarah Mlynowski

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Instead of the usual fairy tale, Abby finds herself in the middle of a book, Alice in Wonderland, with two of her friends, plus bossy Penny (who is definitely not a friend), and in order to get bac...

Abby in Oz

By Sarah Mlynowski

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Bad Hair Day Whatever After 5

By Sarah Mlynowski

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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.