Alan Jacobs Books

THE NARNIAN The Life and Imagination of C. S. Lewis

By Alan Jacobs

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The Wisdom of Balsekar

By Ramesh S Balsekar, Alan Jacobs

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Need to Know In Environmental Studies

By Alan Jacobs

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Need to Know In Environmental Science

By Alan Jacobs

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An inspiring anthology of prose, poetry and ancestral wisdom from members of 40 Native American tribes, organized alphabetically from Anishinaabeg to ZuniAlthough there are major differences in the...

Principal Upanishads

By Alan Jacobs

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The Principal Upanishads

By Alan Jacobs

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Native American wisdom

By Alan Jacobs, M. Gidley

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Peace of mind

By Alan Jacobs

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An anthology of inspirational poetry, prose and aphorisms. These are arranged by theme.

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.