John M. Harrison Books

Muckraking: Past, Present And Future

By John M. Harrison, John M. Harrison And Harry H. Stein. Foreword By Irving Dilliard

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This Volume Was Inspired By The Response To The Conference On Muckraking: Past, Present, And Future, Held At The Pennsylvania State University, May 14-16, 1970, With The Editors Serving As Cochairm...

CIA Flaps And Seals Manual

By Harrison, John M., John M. Harrison, Harrison, John M., John M. Harrison

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Harrison John M. CIA Flaps And Seals Manual 1975 [pdf 60sc 52c. 8.60mb]Many of the techniques taught here were used by CIA and FBI personnel to effect surreptitious openings of mail during the past...

The Blade Of Toledo: The First 150 Years

By John M. Harrison

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M. John Harrison: Critical Essays

By Paul Kincaid, Graham Fraser, James Machin, Christina Scholz, Nick Freeman, Rhys Williams, John M. Harrison, Ryan Elliott, M. John Harrison, Chris Pak, Timothy Jarvis, Nicholas Prescott, Tim Etchells, Fred Botting, Rob Latham, Vassili Christodoulou, Mark Bould

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The Man Who Made Nasby, David Ross Locke

By Harrison, John M., John M. Harrison

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The Nickel Machine

By John M. Harrison

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The Man Who Made Nasby: David Ross Locke,

By John M. Harrison

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The Penance Walk

By John M. Harrison

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The Penance Walk

By John M. Harrison

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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.