Gerald North Books

Course Work Assignments in General Certificate of Secondary Education Chemistry

By Gerald North

Average: 0.00, 0 Ratings

Observing the Moon: The Modern Astronomer's Guide

By Gerald North

Average: 0.00, 0 Ratings

Observing Variable Stars Novae and Supernovae

By Gerald North, Nick James

Average: 0.00, 0 Ratings

Observing comets

By Nick James, Gerald North

Average: 0.00, 0 Ratings

"This comprehensive book is at once a "primer" for comet hunters and a reference text for more advanced amateur astronomers."--BOOK JACKET.

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.