Barbara Calamari Books

In the first story, Angela gets to be in charge of the Spring Fling decorating committee. In the second story, the entire school thinks Angela has a secret boyfriend named Bob.

The fright before Christmas

By Barbara Calamari

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Green with envy

By Barbara Calamari

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Angela is so proud of her new jacket that she wears it on St. Patrick's Day, forgetting to wear something green.

My school newspaper

By Barbara Calamari

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Teacher Trouble Angela Anaconda

By Sue Rose, Joanna Ferrone

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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.