Oniscids are wonderful model organisms for studies addressing more general biological questions, and they arguably demonstrate the best evolutionary progression in any extant group of organisms. Their unique properties as terrestrial crustaceans living in a wide range of habitats from coast to desert offer great advantages to study physiological and behavioural adaptations, ecological, phylogenetic, and biogeographical patterns, and evolutionary processes. This volume contains contributions, which were presented at the 5th International Symposium on the Biology of Terrestrial Isopods...