Eric Geiger Books

Simple Church

By Thom S. Rainer, Eric Geiger

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Iglesia simple

By Thom S. Rainer, Eric Geiger

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Simple church

By Thom S. Rainer

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Encourages pastors to attract church patrons through time-tested, simple means of sharing the Gospel, using case studies of four hundred American churches that experienced growth through clarity, m...

Unfolded

By Eric Geiger

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Transformational groups

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Designed to Lead

By Kevin Peck, Eric Geiger

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How to Ruin Your Life

By Eric Geiger

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Simple Church

By Sam Rainer, Grover Gardner Narrator, Eric Geiger

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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.