Gallagher Brian Books

The Eyes of God

By Gallagher Brian

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Payback

By Gallagher Brian

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Across the divide

By Gallagher Brian

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Secrets and shadows

By Gallagher Brian

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Grace Ryan and Barry Malone--two young children displaced from their homes by German air raids--strike up an easygoing friendship that is put to the test when Barry begins to suspect that his gym i...

Stormclouds

By Gallagher Brian

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Twins Dylan and Emma Goldman move from Washington to Belfast when their journalist father is sent to cover the turbulent early days of the civil rights movement. The complicated friendships prove l...

Friend or foe

By Gallagher Brian

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Taking sides

By Gallagher Brian

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Dublin, 1922. Working class Annie Reilly is thrilled to win a scholarship to Eccles Street School. Through a classmate she meets Peter Scanlon, a student in Belvedere College. Peter sides with the...

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.