Patricia Anne Davis Books

Eight-year-old Brian, who is blind, learns how to take care of his new parakeet and comes to realize that his older brother, while sometimes careless, is not so bad after all.

Russian verbs

By Patricia Anne Davis

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Two Hundred and One Russian Verbs Fully Conjugated in All Tenses

By Patricia Anne Davis

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Making Progress in Russsian

By Patricia Anne Davis, Donald V. Oprendek, Aleksa Fleszar, Arna Bronstein

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Making Progress in Russian

By Patricia Anne Davis

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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.