Shedding new light on the understudied Italian Renaissance scholar, Andrea Cesalpino, and the diverse fields he wrote on, this volume covers the multiple traditions that characterize his complex natural philosophy and medical theories, taking in epistemology, demonology, mineralogy, and botany. By moving beyond the established influence of Aristotle’s texts on his work, Andrea Cesalpino and Renaissance Aristotelianism reflects the rich influences of Platonism, alchemy, Galenism, and Hippocratic ideas. Cesalpino’s relation to the new sciences of the 16th century are traced through his direct influences, on cosmology, botany, and medicine. In combining Cesalpino’s reception of these traditions alongside his connections to early modern science, this book provides a vital case study of Renaissance Aristotelianism.