diff --git a/funny-venn-diagrams-zine.tex b/funny-venn-diagrams-zine.tex
index 3505205..c2895a2 100644
--- a/funny-venn-diagrams-zine.tex
+++ b/funny-venn-diagrams-zine.tex
@@ -119,7 +119,7 @@ All contents  \copyright2025 Kenneth John Odle
 
 
 \section{What Is a Venn Diagram?}
-\bigskip
+\vspace{10mm}
 
 \begin{center}
 \scalebox{0.8}{ %  begin scalebox
@@ -138,18 +138,34 @@ All contents  \copyright2025 Kenneth John Odle
 } % end scalebox
 \end{center}
 
+Venn diagrams are named after John Venn (1835-1923), who described them in his book \textit{Symbolic Logic} (1881).
 
 \section{Cats vs Inkjet Printers}
 \bigskip
 
 \begin{center}
-\scalebox{0.8}{
+\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 life of time self-cleaning\\\medskip Demand feeding when container is full\\\medskip Ignore requests\\\medskip Unreliable};
+	\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}