James D. Ladd Books

Commandos and rangers of World War II

By James D. Ladd

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Amphibious Techniques Modern Military Techniques

By James D. Ladd

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Amphibious techniques

By James D. Ladd

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Describes the various types of craft used in a typical beach assault operation including escort carriers, assault ships, helicopters, submarines and tanks. Also discusses new technological developm...

Military helicopters

By James D. Ladd

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Describes how helicopters perform complicated military maneuvers and includes detailed illustrations explaining their weapons and control systems.

Inside the Commandos

By James D. Ladd

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The White Helmets

By James D. Ladd

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Inside the commandos

By James D. Ladd

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Assault from the sea, 1939-45

By James D. Ladd

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Helicopters Modern Military Techniques

By James D. Ladd

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Sas Operations

By James D. Ladd

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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.