Roland Ennos Books

"More than 80,000 species of trees today cover a full 30 percent of the earth's land mass and have dominated the earth for over 300 million years. Trees are the largest organisms that have ever liv...

The Age of Wood

By Roland Ennos, Dennis Boutsikaris

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The Age of Wood

By Roland Ennos

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The Age Of Wood: Our Most Useful Material And The Construction Of Civilization

By Roland Ennos

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A groundbreaking examination of the role that wood and trees have played in our global ecosystem--including human evolution and the rise and fall of empires--in the bestselling tradition of Yuval H...

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.