William Manchester Books

“The best Churchill biography [for] this generation . . . Even readers who know the basic story will find much that is new.”—NewsweekIn this powerful biography, the middle volume of William Manches...

The Last Lion: Winston Spencer Churchill: Visions of Glory, 1874-1932

By William Manchester

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NEW YORK TIMES BESTSELLER • “An altogether absorbing popular biography . . . The heroic Churchill is in these pages, but so is the little boy writing forlorn letters to the father who all but ignor...

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.