Blair Worden Books

Roundhead Reputations: the English Civil Wars and the Passions of Posterity

By Blair Worden

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Literature and Politics in Cromwellian England: John Milton, Andrew Marvell, Marchamont Nedham: John Milton, Andrew Marvell, Marchamont Nedham

By Blair Worden

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God's Instruments: Political Conduct In The England Of Oliver Cromwell

By Blair Worden

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God's Instruments: Political Conduct in the England of Oliver Cromwell

By Blair Worden

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The Sound of Virtue

By Blair Worden

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Written around 1580, Philip Sidney's Arcadia is a romance, a love story, a work of wit and enchantment set in an ancient and mythical land. But, as Blair Worden now startlingly reveals, it is also...

Sound of Virtue Philip Sidney 8242 s Arcadia and Elizabethan Politics

By Blair Worden

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Soldiers Writers and Statesmen of the English Revolution

By Ian Gentles, John Morrill, Blair Worden

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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.