PREFACE<br > The purpose of lhis book is to examine a series of topics related<br >to population in Africa. Chapter 1 presents a brief summary of the<br >major demo~ral)hic features of the continent， including a discussion of<br >the shortcomings of available statistical data. Chapter 9 analvzes the<br >signiiic a~cc of population densities， noting the very limited utility of<br >crude density tigurcs， and examines the major factors of populatiml<br >dislributiot~s in many African regions. Chapter 3 attempts to synthesize<br >the talc of populalion movements in Africa， stressin~ their impacts on<br >the areas ，and people involved. Chapter 4 contains a range of data<br >related to urb ，mization in Africa and a discussion of some of the prob-<br >lems it peses which are presenting dilemmas of increasing concern to<br > Al ric:m countries. Chapter 5 consists of thunlbnail sketches of a number<br >of tn b ，in communities， indicating the wide diversity among them but<br > also the conmlonality of many of their problems. And Chapter 6 focuses<br > upon i~opulation pressure in Africa， a condition which is considered to<br >