Ronald Elroy Ostman Books

Wood Hicks and Bark Peelers

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Through the photography of William T. Clarke, explores the impact of the logging industry on late nineteenth- and early twentieth-century north-central Pennsylvania.

Great possibilities

By Ronald Elroy Ostman

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The book is a narrated collection of 150 antique photographs taken by one of our former insureds, Mr. Verne Morton. An amazing collection of beautifully enlarged prints of Mr. Mortons glass plate n...

Communication research and drug education

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Communication research and drug education

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Adult distance education, educational technology, and drop out

By Ronald Elroy Ostman

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Cornell Then Now

By Ronald Ostman

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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.