Donna L. Halper Books

Radio music directing

By Donna L. Halper

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Full-service radio

By Donna L. Halper

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Boston radio

By Donna L. Halper

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Boston's radio history begins with pioneering station 1XE/WGI, one of America's first radio stations, and includes the first station to receive a commercial license, WBZ; the first FM radio network...

Invisible stars

By Donna L. Halper

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"The early years of American broadcasting seem to be an exclusively white male preserve, but broadcast historian Donna Halper documents the countless contributions made by women in this field since...

The Miracle Braves of 1914

By Bill Nowlin, Charles F. Faber, Peter C. Bjarkman, Len Levin, Donna L. Halper, Bob Brady, Chip Greene, Clem Comly, Joanne Hulbert

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Icons of talk

By Donna L. Halper

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Icons of Talk the Media Mouths That Changed America

By Donna L. Halper

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Invisible Stars A Social History of Women in American Broadcasting

By Donna Halper

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Invisible Stars

By Donna L. Halper

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Invisible Stars

By Donna Halper

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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.