This handbook is addressed to organizations with goals related to post high school learning. Basic information is provided about future societal developments in the United States that should be taken into consideration in making organizational decisions. Some practical methods for long-range planning are also outlined. Four areas of societal change are considered: (1) demographics; (2) work; (3) political economy; and (4) "learning inventions." In exploring the four areas of change, the likely trends in each are plotted and some possible sources of discontinuity are examined. The authors' judgments about these societal developments and their implications for postsecondary education are included as notes to the text. (MSE)