Clouds have fascinated us for thousands of years, but their natural beauty belies a tremendous complexity that continues to elude a complete theoretical understanding. Rob Wood is a physicist who tries to increase that theoretical understanding, studying cloud systems and the meteorological processes that govern them. Using observational data, he builds models of cloud structures and behaviors, exploring the links between clouds and meteorology over the oceans. He also studies how clouds are impacted by aerosol particles produced by both natural processes and human activities. In recognition of his contributions to our general understanding of the physics of clouds, he has received awards from both sides of the Atlantic, including the L.F. Richardson Prize by the Royal Meteorological Society, and the Henry G. Houghton Award from the American Meteorological Society.