diff --git a/004/codex-004.tex b/004/codex-004.tex
index 20aea90..285e377 100644
--- a/004/codex-004.tex
+++ b/004/codex-004.tex
@@ -97,6 +97,16 @@
 \usepackage{chemformula}
 \usepackage{chemfig}
 
+\usepackage{tikz}
+\newcommand\kpage[1]{
+\begin{tikzpicture}
+\draw (0,0) rectangle (1,1.75);
+\node at (0.5,.9) {{\huge #1}};
+\end{tikzpicture}
+%\hspace{-3mm}
+}
+
+
 %%%% Document Information %%%%%
 \author{Kenneth John Odle}
 \title{
@@ -284,6 +294,40 @@ Unfortunately, sometimes a best practice is arrived at that for no other reason
 
 As I said way back in the first issue, I define a hack as ``an appropriate application of ingenuity''\footnote{See \kref{http://www.catb.org/~esr/jargon/html/meaning-of-hack.html}{http://www.catb.org/~esr/jargon/html/meaning-of-hack.html} for more information.}. These are rare, often false (it only resembles a hack; like the wizard in \textit{The Wizard of Oz}, it's based on smoke and mirrors), and even more often small.\footnote{You can usually identify a false hack by how large it is.} If you find one, enjoy it, preserve, and help to disseminate it.
 
+\chapter{Not Another PDF Scanner}
+
+
+\begin{figure}[h]
+\caption{The document as originally drawn}
+\centering
+\kpage{1}\kpage{2}\kpage{3}\kpage{4}\kpage{5}\
+
+\medskip
+
+\kpage{6}\kpage{7}\kpage{8}\kpage{9}\kpage{10}
+\end{figure}
+
+
+\begin{figure}[h]
+\caption{The document as originally scanned}
+\centering
+\kpage{1}\kpage{3}\kpage{5}\kpage{7}\kpage{9}\
+
+\medskip
+
+\kpage{10}\kpage{8}\kpage{6}\kpage{4}\kpage{2}
+\end{figure}
+
+
+\begin{figure}[h]
+\caption{The document after applying ``Alternate Interleave''}
+\centering
+\kpage{1}\kpage{2}\kpage{3}\kpage{4}\kpage{5}\
+
+\medskip
+
+\kpage{6}\kpage{7}\kpage{8}\kpage{9}\kpage{10}
+\end{figure}
 
 
 \chapter{Chemistry in \LaTeX{}}