Eric Lofgren Books

Unearth the Dark Future Campaign Guide

By Lizard, Robert Baxter, Joe Rapoza, Eric Lofgren

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The backyard chicken bible

By Eric Lofgren

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Whether you want two chickens or two hundred, this manual will guide you along your journey to successfully raising chickens. Growing a backyard chicken flock is an investment, and one of the most...

Better Mousetrap 3e Deluxe

By Eric Lofgren, Steven Trustrum

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Metahuman Martial Arts 3e

By Scott Harshbarger, Shawn Richison, Matthew Vasey, Eric Lofgren, Steven Trustrum

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Metahuman Martial Arts 3e Deluxe

By Scott Harshbarger, Shawn Richison, Matthew Vasey, Eric Lofgren, Steven Trustrum

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Psionics Augmented

By Andreas Ronnqvist, Jeremy Smith, Eric Lofgren

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Your Backyard is the New Farm!Whether you want two chickens or two hundred, this manual will guide you along your journey to successfully raising chickens. Growing a backyard chicken flock is an in...

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.