Robert Penn Books

It's All About the Bike: The Pursuit of Happiness on Two Wheels
The Man Who Made Things Out of Trees
Man Who Made Things Out of Trees
Slow Rise
Slow Rise

By Robert Penn

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Bread
Bread

By Robert Penn

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Slow Rise
Slow Rise

By Robert Penn

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The Wrong Kind Of Snow
The Wrong Kind Of Snow

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The Wrong Kind Of Snow How The Weather Made Britain
The man who made things out of trees
The man who made things out of trees

By Rob Penn

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The story of how one man cut down a single tree to see how many things could be made from it.

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Man Who Made Things Out of Trees

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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.

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