The Society publishes both books and ten primary science journals all of which are available at special reduced member prices. Subsystems Integral to the Society's organisation is a series of subsystems. Membership is automatic, and based on a members geographical location. Sections exist where members have decided to pool and exchange scientific interest and knowledge. Any member may belong to a Section.
Divisions exist where there is a clear professional grouping and professional training.
Divisions' main work is in pursuing and enhancing professional practice. Only those who have completed an approved training may join a Division as a full member. Special Groups exist to represent groups of members working in a particular field. The members of a Special Group all have some defining characteristic that is less rigorous than that required for a Division. Almost all these subsystems run their own events and conferences and publish newsletters for their own members.