A. J. Langguth Books

Macumba: White And Black Magic In Brazil

By A. J. Langguth, A. J Langguth, A J Langguth, 1933-

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Jack Langguth is a novelist and former New York Times reporter who became intrigued with Macumba, and set out on a quest to discover its secrets for himself. Beginning in Rio, where the magic is fa...

Saki

By A.J. Langguth

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Saki: Life Of Hector Hugh Munro

By A. J. Langguth, Saki, A. J. Langguth

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Includes index Bibliography: p. 318-355

Hidden terrors

By A. J. Langguth

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Wedlock

By A. J. Langguth

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Hidden Terrors

By A.J. Langguth

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Jesus Christs.

By Arthur John Langguth

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Patriots

By A.J. Langguth

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A noise of war

By A. J. Langguth

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Through civil wars and world conflicts, the Roman Republic had survived 400 years, its empire stretching from Spain to Syria and beyond. But at the millennium, it seemed about to buckle. An entrenc...

Our Vietnam Nuoc Viet Ta

By A.J. Langguth

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"Twenty-five years after its end, with many records and archives newly opened and many participants now willing to testify, historian and journalist A. J. Langguth has written an authoritative, new...

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.