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\part{The GPL and Legal Aspects of Free Software Development}

\begin{center}

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This part is: Copyright \copyright{} 2003, 2004, 2005 \hspace{.2in} Free Software Foundation, Inc.

Authors of this Part Are: \\

Bradley M. Kuhn \\

David ``Novalis'' Turner \\

Daniel B. Ravicher \\

John Sullivan

\vspace{.3in}

The copyright holders of this part hereby grant the freedom to copy, modify,

convey, Adapt, and/or redistribute this work under the terms of the Creative

Commons Attribution Share Alike 4.0 International License.  A copy of that

license is available at

\verb=https://creativecommons.org/licenses/by-sa/4.0/legalcode=.  }

This part of the tutorial gives a comprehensive explanation of the most

popular Free Software copyright license, the GNU General Public License (GNU

GPL) -- both version 2 and version 3 -- and teaches lawyers, software

developers, managers and business people how to use the GPL (and GPL'd

software) successfully in a new Free Software business and in existing,

successful enterprises.

To successfully benefit of from this part of the tutorial, readers should

have a general familiarity with software development processes. A vague

understanding of how copyright law applies to software is also helpful. The

tutorial is of most interest to lawyers, software developers and managers who

run software businesses that modify and/or redistribute software under terms

of the GNU GPL (or who wish to do so in the future), and those who wish to

make use of existing GPL'd software in their enterprise.

Upon completion of the tutorial, successful students can expect to have

learned the following:

\begin{itemize}

  \item The freedom-defending purpose of each term of the GNU GPLv2 and GPLv3

  \item The differences between GPLv2 and GPLv3.