William Marvel Books

Mr. Lincoln goes to war

By William Marvel

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Lincoln s Darkest Year

By William Marvel

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The great task remaining

By William Marvel

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Analyzes major battles of the third year of the Civil War--including Fredericksburg, Gettysburg, and Vicksburg--as recounted by first-hand witnesses, surveying their views on whether the war's goal...

Burnside

By William Marvel

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Lee's last retreat

By William Marvel

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"Few events in Civil War history have generated such deliberate mythmaking as the retreat that ended at Appomattox. As the popular imagination would have it, Robert E. Lee's tattered, starving, but...

Andersonville

By William Marvel

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Between February 1864 and April 1865, 41,000 Union prisoners of war were taken to the stockade at Anderson Station, Georgia, where nearly 13,000 - one-third of them - died. Most contemporary accoun...

Lincoln s Mercenaries

By William Marvel

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Lee s Last Retreat

By William Marvel

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The Alabama & the Kearsarge

By William Marvel

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On June 19, 1864, the Confederate cruiser Alabama and the USS Kearsarge faced off in the English Channel outside the French port of Cherbourg. The Kearsarge had seen little action, and its men gree...

Andersonville

By William Marvel

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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.