The scientific study of consciousness features a vast array of conflicting theories, but cross-disciplinary exchange between researchers from different camps is not always prevalent. This book seeks to address these complexities by providing a thorough introduction to the field while remaining accessible to those new to the topic. By exploring empirical methods, surveying a variety of competing theories, and outlining challenges for current approaches, it equips readers with the tools to evaluate existing theories. It also showcases contributions from the originators and leading proponents of today's most influential theories, providing unparalleled depth and clarity into diverse theoretical perspectives. Offering a thorough overview of scientific consciousness studies, this book presents new perspectives on a topic that has long puzzled scientists and philosophers alike.