Dan Gallagher Books

Pigeon Key and the Seven Mile Bridge

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Marathon Heart of the Key West Extension

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Florida Keys Environmental Story

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The pleistocene redemption

By Dan Gallagher

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The secrets of successful financial planning

By Gallagher Dan Financial Adviser

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The self aware leader

By Dan Gallagher

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"Written by Fortune 100 executive Dan Gallagher, The Self-Aware Leader is a unique approach on how to become a more effective leader by increasing self-awareness in four pillars of leadership. By i...

Florida s Great Ocean Railway

By Dan Gallagher

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From 1905 to 1916, thousands of laborers and engineers engaged in an amazing construction project—building a railroad line from Miami to Key West. Every mile of the Key West Extension of the Florid...

Ancient of Genes

By Dan Gallagher

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Pleistocene Redemption

By Gene King, David Narvaez, Dan Gallagher

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Fierce Tales

By J. Conrad Matthews, Charlie Boyles, Dan Gallagher

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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.