Owen Barbara. Books

A study of the organ culture of Philadelphia extending over the last 250 years, with an emphasis on local organbuilders, organbuilding, organplaying, and organs in churches and public buildings in...

Waiting for my baby

By Owen Barbara.

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Now what, Lord?

By Owen Barbara.

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Directed towards girls, presents Bible and contemporary stories, activities, suggested readings, and prayers relating to siblings, gossip, death, friendship, love, and other topics.

Great Organ at Methuen

By Owen Barbara.

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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.