Lerner Mark. Books

Quarter-midget racing is for me

By Lerner Mark.

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Matt describes the technical, organizational, and strategical aspects of his first quarter-midget race.

Golf is for me

By Lerner Mark.

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Follows a young boy as he learns the fundamentals of golf from a local pro and plays a round with three other beginners.

Racquetball is for me

By Lerner Mark.

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Jonathan discusses his experiences learning to play racquetball.

Careers with a radio station

By Lerner Mark.

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Describes fifteen careers, including announcer, sports director, sales manager, music director, researcher, traffic manager, promotions director, account executive, and chief engineer.

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.