David R. Clark Books

Twentieth century interpretations of Murder in the Cathedral : A collection of critical essays

By David R. Clark

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That black day

By David R. Clark

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The Merrill studies in The bridge.

By David R. Clark

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The winding stair (1929)

By William Butler Yeats

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In 1929 W. B. Yeats published a collection of poems titled The Winding Stair. Four years later he combined this collection with his 1932 work, Words for Music Perhaps, to form The Winding Stair and...

Words for music perhaps and other poems

By William Butler Yeats

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"Words for Music Perhaps and Other Poems (1932) has been called W. B. Yeats's finest single volume. It features not only the great series for which it is named - a series that includes the Crazy Ja...

Parnell's funeral and other poems from A full moon in March

By William Butler Yeats

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Druid craft

By William Butler Yeats

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W. B .Yeats

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Riders to the sea.

By J. M. Synge

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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.