Jack Rummel Books

Under a Hoodoo Moon: The Life of Dr. John the Night Tripper

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In these pages, Dr. John, the alchemist of New Orleans psychedelic funk, tells his story, and what a story it is: of four decades on the road, on the charts, in and out of trouble, but always steep...

Under a Hoodoo Moon: The Life of the Night Tripper

By John Dr, Jack Rummel, Mac Rebennack

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Malcolm X Black Americans of Achievement Econo Clad

By Jack Rummel

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Ready for the rodeo

By Jack Rummel

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Langston Hughes

By Jack Rummel

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Muhammad Ali Black Americans of Achievement

By Jack Rummel

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Malcolm X Black Americans of Achievement

By Jack Rummel

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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.