Michael S. Harper Books

"For decades, Michael S. Harper has written poetry that speaks with many voices. His work teems with poetry configured as awe, poetry as courtship, and poetry as elegy and homage. Infused with tale...

Use trouble

By Michael S. Harper

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The Vintage Book of African American Poetry

By Michael S. Harper, Anthony Walton

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In The Vintage Book of African American Poetry, editors Michael S. Harper and Anthony Walton present the definitive collection of black verse in the United States--200 years of vision, struggle, po...

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.