After a long search on the internet, I can't seem to find a solution to the following problem:

I need to created a beamer presentation. The organization that is funding me wants me to have their banner at the top of every slide. Is there an easy way to do this?

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A very basic structure could look like shown below. The beamer manual introduces several other themes which support a logo at the desired position. Thus a close look at that manual is suggestive.

\documentclass[smaller]{beamer}
\usetheme{Berkeley}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{fix-cm}

\pgfdeclareimage[height=1cm]{logo}{lion-orig}
\logo{\pgfuseimage{logo}}

\begin{document}
\begin{frame}
\frametitle{The first slide}
The »Berkeley« theme with a logo in the upper left corner.
\end{frame}
\begin{frame}
\frametitle{The second slide}
The »Berkeley« theme with a logo in the upper left corner.
\end{frame}
\end{document}


The CTAN Lion is an artwork by Duane Bibby, courtesy of CTAN.

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