The book includes four interpretive essays, which tackle problems related to the whole treatise on a more philosophical basis, including questions about the structure and unity of the work, the organisation of the material, Aristotle’s methodological principles, his aims and target audience as well as the relevance of his selected themes to the thematic agenda of some Hippocratic writings. This book is of interest to students and researchers in Aristotle’s psychophysiology, and his views about the embodied mind, as well as to anyone concerned with the history of natural philosophy and science more generally.