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\author{Allen B. Downey and Chris Mayfield}

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{\Large Green Tea Press}

{\small Needham, Massachusetts}

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Copyright \copyright ~2017 \theauthors.

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Green Tea Press \\
9 Washburn Ave \\
Needham, MA 02492
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Permission is granted to copy, distribute, and/or modify this work under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, which is available at \url{https://creativecommons.org/licenses/by-nc-sa/4.0/}.

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\vspace*{64pt}

{\bf\huge About the Authors}

\vspace*{40pt}

{\bf Allen Downey} is a Professor of Computer Science at Olin College of Engineering.
He has taught computer science at Wellesley College, Colby College, and U.C. Berkeley.
He has a Ph.D. in Computer Science from U.C. Berkeley and Master's and Bachelor's degrees from MIT.

{\bf Chris Mayfield} is an Associate Professor of Computer Science at James Madison University, with a research focus on CS education and professional development.
He has a Ph.D. in Computer Science from Purdue University and Bachelor's degrees in CS and German from the University of Utah.

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