This easy-to-use book provides an introduction to the different types of mammal, and concise species accounts that include details of habitat, daily and yearly activity rhythms, feeding behaviour, sounds, breeding biology and general habits. It also contains descriptions of key field signs-including tracks, scats and nests-that give away the presence of mammals even when they are out of sight. In addition, guidance is provided on ways of studying and observing mammals-including small-mammal trapping, bat detecting and whale watching-as well as mammal conservation, the law and sources of further useful information.