Thomas Mark Books

Le Silence De La Mer La Collection Escrivac

By Thomas Mark, Vercors

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Work in Colonial America

By Thomas Mark

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A simple introduction to various jobs in Colonial America, including those performed by blacksmiths, coopers, and shoemakers.

School in Colonial America

By Thomas Mark, Mark Thomas

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A brief description of schools in Colonial America, and what children learned there.

Homes in Colonial America

By Thomas Mark, Mark Thomas

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Simple text and photographs depict homes in Colonial America, describing their interiors, exteriors, and such typical features as fireplaces and outhouses.

Work in Colonial America

By Thomas Mark

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A simple introduction to various jobs in Colonial America, including those performed by blacksmiths, coopers, and shoemakers.

Food in Colonial America

By Thomas Mark, Mark Thomas

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Simple text and photographs depict some foods and cooking techniques of American colonists.

Supercharge your management role

By Thomas Mark

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The Petronas Twin Towers

By Thomas Mark

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A look at the Petronas Twin Towers in Kuala Lumpur, Malaysia.

The Seikan Railroad Tunnel

By Thomas Mark

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A look at the Seikan Railroad Tunnel, that connects the islands of Hokkaido and Honshu in Japan.

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.