Amy Goldman Koss Books

The Girls

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Maya has been part of the group ever since the day Candace asked her if she wanted to "do lunch" in the cafeteria. Yet when Candace suddenly deems her unworthy, Maya's so-called friends just blow...

ABC Dinosaurs in the Woods Questron Electronics Books

By Amy Goldman Koss, Katie Maratta, Craig Tyler

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Where Fish Go in Winter

By Amy Goldman Koss

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The Girls

By Amy Goldman Koss

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The Girls

By Amy Goldman Koss

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The Girls

By Amy Goldman Koss

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The Girls

By Amy Goldman Koss

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The girls: Maya, Brianna, Darcy, Renee?and popular, fascinating, dangerous Candace. Five friends ruled by one ringleader who plays games to test their loyalty?and then decides who's in the group a...

Gossip Times Three

By Amy Goldman Koss

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Gossip Times Three

By Amy Goldman Koss

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Abby, Bess, and Cristy are best friends-period, end of story. Until Bess said, "Zack's cute," and the two words sent the three friends into a tailspin. Zack, you see, was Abby's long, long, longtim...

Away

By Amy Goldman Koss

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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.