diff --git a/SoftwareGuide/Latex/Architecture/DataRepresentation.tex b/SoftwareGuide/Latex/Architecture/DataRepresentation.tex
index c829eaf7..8a379dce 100644
--- a/SoftwareGuide/Latex/Architecture/DataRepresentation.tex
+++ b/SoftwareGuide/Latex/Architecture/DataRepresentation.tex
@@ -59,7 +59,7 @@ \subsection{RGB Images}
 repeated with 24 hours intervals.} receptors are sensitive to the lighting
 conditions that differentiate day from night. These receptors evolved as a
 mechanism for synchronizing the physiology with the time of the day. Cellular
-controls for circadian rythms are present in every cell of an organism and are
+controls for circadian rhythms are present in every cell of an organism and are
 known to be exquisitively precise~\cite{Lodish2000}.
 
 The RGB space has been constructed as a representation of a physiological
diff --git a/SoftwareGuide/Latex/Architecture/Iterators.tex b/SoftwareGuide/Latex/Architecture/Iterators.tex
index 3e9eaf93..37f0312e 100644
--- a/SoftwareGuide/Latex/Architecture/Iterators.tex
+++ b/SoftwareGuide/Latex/Architecture/Iterators.tex
@@ -126,7 +126,7 @@ \subsection{Moving Iterators}
 important to remember because attempting to dereference an iterator at its end
 position will have undefined results.
 
-%Moving iteators
+%Moving iterators
 ITK iterators are moved back and forth across their iterations using the
 decrement and increment operators.
 
@@ -276,7 +276,7 @@ \subsection{Accessing Data}
 
 \subsection{Iteration Loops}
 \label{sec:IterationExample}
-% Now give a psuedo code example for putting all of this together.
+% Now give a pseudo code example for putting all of this together.
 Using the methods described in the previous sections, we can now write a simple
 example to do pixel-wise operations on an image.  The following code calculates
 the squares of all values in an input image and writes them to an output image.
diff --git a/SoftwareGuide/Latex/Architecture/SystemOverview.tex b/SoftwareGuide/Latex/Architecture/SystemOverview.tex
index 141c680f..7e56b0e1 100644
--- a/SoftwareGuide/Latex/Architecture/SystemOverview.tex
+++ b/SoftwareGuide/Latex/Architecture/SystemOverview.tex
@@ -880,7 +880,7 @@ \section{Wrapping}
 
 \small
 \begin{minted}{python}
-  Dimesion = 3
+  Dimension = 3
   index = itk.Index[Dimension]()
   index_as_tuple = tuple(index)
   index_as_list = list(index)