Harry G. Lang Books

"Born in 1810, Edmund Booth epitomized virtually everything that characterized an American legend of the 19th century. He taught school in Harford, CT, then went west to Anamosa, Iowa, where he bui...

Teaching from the Heart and Soul

By Harry G. Lang

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Fighting in the shadows

By Harry G. Lang

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This volume presents Harry G. Lang's study of deaf people's experiences in the Civil War. Based on meticulous archival research, Fighting in the Shadows reveals the stories of both ordinary and ext...

Moments of truth

By Harry G. Lang

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Moments of truth

By Harry G. Lang

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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.