Hartley Books

American Streamline: Destinations: Pt.B: An Intensive American English Course for Advanced Students
Amer Str Conn Tests
Cost & Managerial Accounting
Baringo and Bogoria
Baringo and Bogoria

By Hartley Jean, J. Hartley

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My sisters' keeper
My sisters' keeper

By L. P. Hartley

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Bro Shrimp the Anemone
Bro Shrimp the Anemone

By HARTLEY

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Letters of Hartley Coleridge
Staff support groups in the helping professions
The Economics of Defence Spending
The Economics of Defence Spending

By

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Fly
Fly

By Karen Hartley

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A simple introduction to the physical characteristics, diet, life cycle, predators, habitat, and lifespan of flies.

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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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