Book excerpt: Power and Choice, Thirteenth Edition is a comparative, conceptual introduction to political science which involves students in the dramatic and interesting variety of politics around the world; students clearly are the audience of this text. The theme of "power and choice," based on a definition of politics as the making of collective choices for a group or state through the use of power, runs through much of the text. The text is organized topically, rather than by county-by-country, and provides in-depth examples at the conclusion of most chapters.