Doug Lennox Books

Now you know disasters

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Earthquakes, volcanic eruptions, tsunamis and tidal waves, fires, mine cave-ins, bridge collapses, ship sinkings, airplane crashes, explosions, and plagues -- natural and human-engineered calamity...

Now You Know Almost Everything

By Doug Lennox

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Now You Know Big Book of Answers

By Doug Lennox

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Now you know disasters

By Doug Lennox

Average: 0.00, 0 Ratings

Earthquakes, volcanic eruptions, tsunamis and tidal waves, fires, mine cave-ins, bridge collapses, ship sinkings, airplane crashes, explosions, and plagues -- natural and human-engineered calamity...

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.