Building a clean, visually attractive presentation is one of the most effective ways for scientists to engage their audience, whether at a scientific conference or venture capital pitch. Fortunately, it's not a difficult process, and following a few simple guidelines will ensure that the audience focuses on the content and isn't distracted by awkward presentation design. In part 1 of this series, David Shifrin covers a few tips for color and theme selection. The short version: keep it simple; if you have to ask, "is this too much?" it probably is.