Molluscs - snails, mussels, cephalopods and ammonites - are to man both beneficial animals and pests. They play an important role in medicine, phytomedicine, and science. They are also a main provider of delicacies and pearls. Architecture, literature and the graphic arts have been inspired by their shapes. They are causing more and more damage to agriculture and are also vital bioindicators regarding the condition of the environment. This book describes extensively and comprehensively the relationships between man and molluscs.