Cau Kiel Beamer

% t 	- the text is placed at the top of each frame instead of being centered
% 10pt 	- default font size is 10pt
\documentclass[10pt]{beamer}

% Why we use `input` instead of include: http://tex.stackexchange.com/a/250/113577
\input{preamble}
\input{commands}

\begin{document}

    \input{chapters/intro}
    \input{chapters/motivation}
    \input{chapters/titleformats}
    \input{chapters/elements}
    \input{chapters/summary}
    \input{chapters/backup}

\end{document}