Heather Couper Books

Encyclopedia of Space

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Discover places where a day is longer than a year, where hailstones are made of diamonds, and where a mountain looms twice the size of Everest. These and more are all to be found in The Planets.The...

The Firefly Space Encyclopedia

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The History of Astronomy

By Heather Couper, Nigel Henbest

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Space Trip!

By Heather Couper

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Explores concepts and facts about space travel.

Space Trip!

By Heather Couper

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Explores concepts and facts about space travel.

Universe

By Heather Couper

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The astronomy bible

By Heather Couper

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The history of astronomy

By Heather Godley

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As we approach the 400th anniversary of Galileo's birth, there is no better time for this extraordinary volume examining centuries of evolution in astronomy.

The story of astronomy

By Heather Couper

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As we approach the 450th anniversary of Galileo's birth, there is no better time for this extraordinary volume examining centuries of evolution in astronomy. From superstition and mythology to scie...

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.