Ian Gentles Books

Oliver Cromwell: God's Warrior and the English Revolution

By Ian Gentles, I. Gentles, I. J. Gentles

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"The first new biography of Cromwell in several years, this rounded account interweaves his political and military careers, and explores his passionate religiosity. Synthesizing much recent researc...

Soldiers Writers and Statesmen of the English Revolution

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The English Revolution and the Wars in the Three Kingdoms 1638 1652 Modern Wars In Perspective

By Ian Gentles, I. J. Gentles

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The New Model Army: In England, Scotland and Ireland, 1645-1653

By Ian Gentles, I. J. Gentles

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A Time to Choose Life

By Ian Gentles

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Care for the Dying

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The law and abortion

By I. J. Gentles

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Women s Health After Abortion

By Elizabeth Ring Cassidy, Ian Gentles

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Spirit of Flight

By Ian Gentle

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New Model Army

By Ian Gentles

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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.