Joann Adinolfi Books

The Egyptian polar bear

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A lonely polar bear is swept away on an iceberg and winds up in Egypt where he becomes the royal playmate of Rahotep the boy king.

Tina s Diner

By Joann Adinolfi

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Tina's Diner

By JoAnn Adinolfi

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When the clogged sink at Tina's Diner creates an emergency situation and the plumber is out on another job, a young customer takes matters into his own hands.

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.