Willma Willis Books

Vip Who Work With Recreation Vehicles

By Willma Willis, Dorothy Rhodes Freeman, Margaret Westover

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Discusses the jobs of people who make, sell, repair, and deal in other ways with bicycles, motorcycles, snowmobiles, campers, and other recreational vehicles.

VIP who work with sight and sound

By Dorothy Rhodes Freeman

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Describes careers in the communications media dealing with sight and sound.

Sand and man.

By Willma Willis

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Describes the way sand is formed and travels over the earth's surface and its many uses to man.

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.