John B. Severance Books

Gandhi, Great Soul

By John B. Severance

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Einstein

By John B. Severance

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Einstein

By John B. Severance

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A biography of Einstein which focuses on the originality of his theories and the contradictions in his character.

Braving the fire

By John B. Severance

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Jem joins the Union Army but is not sure of his motives or what he hopes to accomplish, particularly since the Civil War has divided his family and caused much violence and confusion in his life.

Four Extraordinary Skyscrapers

By Edward Jr. Keister

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Skyscrapers

By John B. Severance

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Details some of the innovations that enabled the building of taller and taller buildings, describes the various schools of skyscraper architecture, and explores the history of several famous skyscr...

Gandhi Great Soul

By John B. Severance

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Thomas Jefferson

By John B. Severance

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Thomas Jefferson

By John B. Severance

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Fortune Found

By John B. Severance

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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.