funny-venn-diagrams-zine/funny-venn-diagrams-zine.tex

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\usepackage{fancyhdr}
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 \fancyhead[LE,RO]{Funny Venn Diagrams}
 \fancyhead[RE,LO]{To Color and Enjoy}
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\title{
 {\Huge Funny Venn Diagrams} \\
 \bigskip
 {\Large To Color and Enjoy} \\
 \bigskip
 {\small by \author{Kenneth John Odle}}
}
\date{}


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\begin{document}
\maketitle
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\section*{Introduction}
All contents  \copyright2025 Kenneth John Odle



\tableofcontents
\newpage


\section{What Is a Venn Diagram?}
\vspace{10mm}

\begin{center}
\scalebox{0.8}{ %  begin scalebox
\begin{tikzpicture}
	\draw [postaction={decorate, decoration={text along path, raise=8pt, text color=blue, text align={align=right, right indent=23mm}, text={|\LARGE|Venn Diagram of Venn Diagrams||}, reverse path, }}] (0,2) circle (4) ;
	\draw (2,-2) circle (4);
	\draw (-2,-2) circle (4);
	\node[align=center, text width=2cm, scale=1.4] at (0, -0.5) {Venn Digrams};
	\node[align=center, text width=2cm, scale=2.0] at (0, 3.5) { Circles};
	\node[align=center, text width=2cm, scale=2.0] at (-4, -2.05) {Infor-\\mation};
	\node[align=center, text width=2cm, scale=2.0] at (4, -2.5) {Things that Overlap};
	\node[align=center, text width=1cm, scale=1.2] at (-2.4, 0.8) {Pie Charts};
	\node[align=center, text width=1cm, scale=1.2] at (2.4, 0.8) {Ellipses};
	\node[align=center, text width=1.5cm, scale=1.2] at (0, -3.0) {Redundancies};
\end{tikzpicture}
} % end scalebox
\end{center}

\paragraph{Origins} Venn diagrams are named after John Venn (1835-1923), who described them in his book \textit{Symbolic Logic} (1881).

They are commonly used to teach elementary set theory,\footnote{That branch of mathematics that studies \textit{sets}—i.e., collections of objects.} and to illustrate simple set relationships in probability, logic, statistics, linguistics, and computer science. Although they typically use circles or ellipses drawn on a plane to represent sets, other closed curves are possible.

\section{Cats vs Inkjet Printers}
\bigskip

\begin{center}
\scalebox{0.7}{
\begin{tikzpicture}
	\draw (-1.5,0) circle (4);
	\draw (1.5,0) circle (4);
	\node[align=center, text width=1.5cm, scale=2.0] at (-3.85,0) {Cats};
	\node[align=center, text width=1.5cm, scale=2.0] at (4.0,0) {Inkjet Printers};
	\node[align=center, text width=3.5cm, scale=1.2] at (0,0) {Moody\\\medskip Spend a lot of time self-cleaning\\\medskip Demand feeding when container is full\\\medskip Ignore requests\\\medskip Unreliable};
\end{tikzpicture}
} % end scalebox
\end{center}


\section{People Who Understand Venn Diagrams vs People Who Don't Understand Venn Diagrams}
\bigskip

\begin{center}
\scalebox{0.8}{
\begin{tikzpicture}
	\draw (-3,0) circle (2.8);
	\draw (3,0) circle (2.8);
	\node[align=center, text width=30mm, scale=1.5] at (-3,0) {People who understand Venn diagrams};
	\node[align=center, text width=30mm, scale=1.5] at (3,0) {People who don't understand Venn diagrams};
\end{tikzpicture}
} % end scalebox
\end{center}

\end{document}