This is a demographer's look at current population trends along with a forecast of the ""explosion"" to follow and it is based on a good many round figures, charts, and supportive statistics. (In 800 years, there will be one person per square foot of land at the present rate of growth; here in the U.S. we have only 200 years to go.) Hauser relates the population growth to many of the problems generated- particularly economic but also political; he discusses what has happened in the U.S. in terms of the age structure of the population, schools, labor, households; the great concentration in the urban areas, and its effect on housing, services, and politics- with the Negro population most affected; and he provides predictions for underdeveloped and developed areas all over the world. In his ""overview"" and conclusions, one remains inescapable- the birth rate must be reduced. While defining the Communist position and that of the Roman Catholic Church, he does not enter the controversy- only indicates the inadequacy of present birth control methods and the need for responsible parenthood ""in the interest of the individual, the family, the nation, and the world"". News and magazine coverage may well have 'absorbed the general market's interest in the subject; this is in any case a research study for reference in the social science field.