John Bull Books

The Audubon Society Field Guide To North American Birds: Eastern Region
The Audubon Society Field Guide To North American Birds: Eastern Region

By John Bull, John L. Bull, John Farrand Jr.

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A simple and enjoyable book to aid in the identification of eastern species of birds.

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New British political dramatists
New British political dramatists
Birds of the New York area
Galliards Pavans and Other Keyboard Works
The easy bird guide.
The easy bird guide.

By John L. Bull

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Two Pieces
Two Pieces

By

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British Irish Dramatists since WWII
British and Irish Dramatists Since World War II
Dictionary of Literary Biography v. 310
Dictionary of Literary Biography v. 310

By John Bull

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Volume 310. British and Irish Dramatists Since World War II, Fourth Series

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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.

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