This book presents an overview of our current understanding on various types of clouds and cloud systems and their multifaceted role in the radiative budget, circulation patterns, and rainfall. Volume highlights include: Interactions of aerosol with both liquid and ice clouds; Surface and atmospheric cloud radiative feedbacks and effects; Arctic, extratropical, and tropical clouds; Cloud-circulation coupling at global, meso, and micro scales; Precipitation efficiency, phase, and measurements; The role of machine learning in understanding clouds and climate.