Ralph Hancock Books

The Science of Movement

By Ralph Hancock

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Movement

By Hancock Ralph

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Explains the laws governing all movement and describes how and why things move, with an emphasis on machines ranging from simple wheels to spacecraft.

Puerto Rico a success story

By Ralph Hancock

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Super Machines

By Ralph Hancock

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Presents descriptions and diagrams of heavy machinery such as bulldozers, ships, and cars.

How it Works. The Illustrated Encyclopedia of Science and Technology 20 volume set

By Ralph Hancock

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Science tricks

By Ralph Hancock

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Machines

By Ralph Hancock

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The Rainbow Republics Central America

By Ralph Hancock

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American Heritage

By Ralph Hancock

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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.