Elder Olson Books

American Poetry: The Twentieth Century Vol. 1 (LOA 115)

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In the years between the beginning of the twentieth century and the end of World War II, American poetry was transformed, producing a body of work whose influence was felt throughout the world. Now...

American Poetry: The Twentieth Century Vol. 2 (LOA 116)

By Robert Hass

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“The editing is more than brilliant: It is nearly unimaginable how the Library of America team managed to do so much so well. . . . Every possible kind of poem is here in its best examples. N...

Tragedia i teoria del drama

By Salvador Oliva, Elder Olson

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Aristotle s Poetics and English Literature

By Elder Olson

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Tragedy and Theory of Drama

By Elder Olson

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Cock of Heaven

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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.