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diff --git a/include/chap02.tex b/chapters/chap02.tex
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diff --git a/include/chap05.tex b/chapters/chap05.tex
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diff --git a/include/chap06.tex b/chapters/chap06.tex
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diff --git a/include/coda.tex b/chapters/coda.tex
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diff --git a/include/commands.tex b/include/commands.tex
index 458e631..5663585 100644
--- a/include/commands.tex
+++ b/include/commands.tex
@@ -77,3 +77,6 @@
 	\hrule
 	\medskip
 }
+
+% Typesetting keyboard commands
+\newcommand{\kkey}[1]{\textsc{\texttt{#1}}}