Robert L. Chapman Books

American Slang

By Robert L. Chapman

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Dictionary of American Slang 4e

By Barbara Ann Kipfer, Robert L. Chapman

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Dictionary of American Slang 4e

By Barbara Ann Kipfer, Robert L. Chapman

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New Dictionary of American Slang

By Robert L. Chapman

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In linguistics, where definitions at best are often imprecise, those of slang terms are notoriously hard to establish. Recorded slang emerged from the special languages of sub-cultures and never st...

Roget International Thesaurus Index 5E

By Robert L. Chapman

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Roget International Thesaurus

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Roget A to Z

By Peter Mark Roget, Robert L. Chapman

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Summary : Roget's international thesaurus in alphabetical format.

The Dictionary of American Slang

By Robert L. Chapman

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Roget's International Thesaurus

By Robert L. Chapman

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Roget A to Z

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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.