The Principal Users of the Encyclopaedia are Likely to be Students and scholars of Iranian culture, history, literature, geography, and area studies. Most of these will not be looking so much for technical articles in their own specialties as for general introductory entries in ancillary areas. I hope that another category of user of the fauna and other natural history entries, for which some forty articles have now been published, will be the student or scholar beginning studies of Iranian natural history looking for summary and review articles and bibliographic sources. For such users, the EIr can perform an invaluable service, as there is no other existing source in any language attempting to pull together the knowledge of Iranian natural history as a whole.
To serve the needs of this diverse audience, entries about individual species of native animals ought to include some description or definition of the creature, a brief summary of its natural history, viz., its habits and behavior, its habitat, its status in the biotic community (as prey, predator, relative abundance, etc.), its general distribution, and its range within Iran (and the other areas covered by the EIr); cultural information that applies, such as conservation, economic importance, history of use or human interactions, appearance in literature, folklore, and mythology, should be discussed.