Vincent H. Malmstrom Books

Geography of Europe

By Vincent H. Malmstrom

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Geography of Europe: Regional Analysis

By Vincent Herschel Malmstrom, Vincent H. Malmstrom

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Cycles of the Sun, Mysteries of the Moon

By Vincent Herschel Malmstrom, Vincent H. Malmstrom

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"Engagingly written revisionist argumentation regarding the ancient origins of the 'Maya' calendars, which this author posits to have originated in Izapa, Soconusco, and then spread to other people...

Cycles of the Sun Mysteries of the Moon

By Vincent H. Malmstrom

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The simple question "How did the Maya come up with a calendar that had only 260 days?" led Vincent Malmstrom to discover an unexpected "hearth" of Mesoamerican culture. In this boldly revisionist b...

Norden

By Vincent H. Malmstrom

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Cycles of the Sun Mysteries of the Moon

By Vincent H. Malmstrom

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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.