Brenda Bolton Books

The Medieval Reformation Foundations of Medieval History

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Adrian IV the English Pope 1154 1159 Studies and Texts Church Faith and Culture in the Medieval West

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"The year 2002 witnessed the 900th anniversary of the birth of Adrian IV, the only Englishman to sit on the papal throne. His short pontificate of four and a half years, distracted by crisis and co...

Women in medieval society

By Brenda Bolton, Susan Mosher Stuard

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Early medieval women exercised public roles, rights, and responsibilities. Women contributed through their labor to the welfare of the community. Women played an important part in public affairs. T...

Women in medieval society

By Brenda Bolton, Susan Mosher Stuard

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Innocent III

By Brenda Bolton

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Pope Innocent III and his world

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Aspects of Power and Authority in the Middle Ages International Medieval Research

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Pope Church And City

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Women in Medieval Society

By Susan Mosher Stuard

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Medieval Reformation

By Brenda Bolton

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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.