Habitat describes the preferred habitat. Distribution describes the current areas in which the species may be found and where it was found in the past. Threats describes the natural or human-made events which have led to the decline of the species' population, and potential threats. Conservation and Recovery describes all efforts to save the species and gives an indication of future survival. Contacts lists the organizations which can help researchers with this species.
References contains sources that the user can use to gain more information on the species.
Volume six contains a glossary, a list of organizations and agencies that have an interest in environmental and wildlife issues, a geographic index arranged by country, and a master index that lists the species alphabetically by common and scientific names, plus variant common and scientific names. This is an extremely well organized set that provides comprehensive information on endangered and threatened species in the United States and adjacent areas. The text is very readable for the layperson and the visual layout of the material is excellent. It is highly recommended for all academic libraries, large public libraries, and special libraries. There is no other book or set that provides the information in such an easy to read format.