Sarah Combs Books

Breakfast Served Anytime

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A coming-of-age debut evokes the bittersweet joys and pangs of finding independence in one unforgettable summer away at "geek camp." When Gloria sets out to spend the summer before her senior year...

The Light Fantastic

By Sarah Combs

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Seven tightly interwoven narratives. Three harrowing hours. One fateful day that changes everything. Delaware, the morning of April 19. Senior Skip Day, and April Donovan’s eighteenth birth...

Breakfast Served Anytime

By Sarah Combs

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“Beautifully drawn characters populate this affecting first novel, each of them real enough to be hug-worthy. . . . There is much to be savored in this book for those who want a story about r...

The Light Fantastic

By Sarah Combs, Lauren Ezzo, Todd Haberkorn

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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.