George T. Geis Books

Digital Deals: Strategies for Selecting and Structuring Partnerships

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"Digital Deals explains and analyzes the "growth through partnering" success of companies like Cisco, AOL, Microsoft and others. Combining case studies from the files of these digital leaders with...

Desktop Computing and the Essence of Management Book and Disks

By George T. Geis

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Micromanaging: Transforming Business Leaders With Personal Computers

By George T. Geis

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Micromanaging: Transforming Business Letters with Personal Computers

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Semi organic growth

By George T. Geis

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"An in-depth examination of Google's innovative approach to mergers and acquisitions. 'Semi-Organic Growth' presents a unique analysis of Google's distinctive expertise in the area of mergers and a...

Business Management With Lotus Agenda Book Software 3 1 2

By George Geis

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Firm Bond

By Robert L. Kuhn, George T. Geis

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Semi Organic Growth

By George T. Geis

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Semi Organic Growth

By George T. Geis

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Semi Organic Growth

By George T. Geis

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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.