Waldo Heinrichs Books

Implacable Foes: War in the Pacific, 1944-1945

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"At the end of World War Two, Americans clamored for their troops to come home. Politics intruded upon military policy while a new and untested president struggled to strategize among a military co...

Threshold of war

By Waldo H. Heinrichs

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Threshold of War: Franklin D. Roosevelt & American Entry into World War II: Franklin D.Roosevelt and American Entry into World War II

By Waldo Heinrichs

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Threshold Of War

By Waldo Heinrichs

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Implacable Foes: War in the Pacific, 1944-1945

By Waldo Heinrichs, Marc Gallicchio

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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.