Norman B. Rohrer Books

Welcome to the Rest of Your Life: A Guide to Worry-Free Retirement

By Ted Engstrom, Theodore Wilhelm Engstrom, Norman B. Rohrer

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Dale Evans Rogers

By Dale Evans Rogers, Norman B. Rohrer

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Dale recounts her story of her career in Hollywood, falling in love with Roy Rogers, the joy of raising her children, her rehabilitation from her stroke, saying good-bye to her husband of nearly fi...

Peter Dynamite, twice-born Russian

By Norman B. Rohrer

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Facing anger

By Norman B. Rohrer

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How to Eat Right and Feel Great

By Virginia Rohrer, Norman B. Rohrer

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These will not be left behind

By Tim F. LaHaye

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Making the Right Choices

By Theodore Wilhelm Engstrom, Norman B. Rohrer, Ted W. Engstrom

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The remarkable story of Mom LeTourneau

By Norman B. Rohrer

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Leighton Ford

By Norman B. Rohrer

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This poor man cried

By Norman B. Rohrer

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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.