Family planning is still an area that excites controversy, but there i
s clear evidence of a strong demand for family planning services. The
population of Kenya, for example, doubles every 18 years and the total
fertility rate of the Earth's population is still twice that required
to maintain present numbers. Successful family planning programmes ar
e discussed and it is shown that they all have certain factors in comm
on: they are widespread, cheap, provide a range of methods, encourage
long periods of breastfeeding and address the problems of unsafe abort
ion. Various policies and management structures are reviewed, as are t
he costs and cost effectiveness of family planning. Finally the relati
onships between family planning and economic progress, demographics, e
cology, cultural and religious traditions and other factors are discus
sed.