The Proceedings of the SOHO-7 Workshop provide an overview of how observations with the Solar and Heliospheric Observatory (SOHO) have led to greater understanding about the nature and evolution of coronal holes and the acceleration of the solar wind. Coronal holes are regions of low density plasma on the Sun that have magnetic fields that expand freely into interplanetary space, and SOHO has allowed solar physicists to investigate the detailed physical processes responsible for maintaining this complex state. The SOHO-7 Workshop Proceedings focus on four topics: (1) constraints by interplanetary and remote-sensing measurements on solar wind models, (2) energy input, heating, and wind acceleration in coronal holes, (3) coronal hole boundaries and adjacent regions, and (4) composition and elemental abundance variations. This book will be of use to the entire solar community by providing scientists with a concise summary of the progress SOHO has made in this field, and young researchers can use it to learn about the most relevant topics in this rapidly evolving discipline.