The International Union for the Scientific Study of Population Problems was set up in 1928, with Dr Raymond Pearl as President. At that time the Union's main purpose was to promote international scientific co-operation to study the various aspects of population problems, through national committees and through its members themselves. In 1947 the International Union for the Scientific Study of Population (IUSSP) was reconstituted into its present form.It expanded its activities to: | • | stimulate research on population | | • | develop interest in demographic matters among governments, national and inter- national organizations, scientific bodies, and the general SYSTEM | | • | foster relations between people involved in population studies | | • | disseminate scientific knowledge on population. | The principal ways through which the IUSSP currently achieves its aims are: | | organization of worldwide or regional conferences | | | operations of Scientific Committees under the auspices of the Council | | | organization of training courses | | | SYSTEMation of conference proceedings and committee reports. | Demography can be defined by its field of study and its analytical methods. Accordingly, it can be regarded as the scientific study of human populations primarily with respect to their size, their structure, and their development. For reasons which are related to the his- tory of the discipline, the demographic method is essentially inductive: progress in knowl- edge results from the improvement of observation, the sophistication of measurement methods, and the search for regularities and stable factors leading to the formulation of ex- planatory models. In conclusion, the three objectives of demographic analysis are to de- scribe, measure, and analyse. International Studies in Demography is the outcome of an agreement concluded by the IUSSP and the Oxford University Press. The joint series reflects the broad range of the Union's activities; it is based on the seminars organized by the Union and important in- ternational meetings in the field of population and development. The Editorial Board of the series is comprised of: | John Cleland, UK | Henri Leridon, France | | John Hobcraft, UK | Richard Smith, UK | | | Georges Tapinos, France | -ii- |