Hoover first published the textbook, now in its seventh edition, in 1976. Donovan, who specializes in voter motivation and conduct, joined Hoover for the sixth edition in 1995. The political implications of people's similarities and differences are one dimension of the spectrum, and the issue of individual freedom vs. community power is the other, Hoover says. Bringing these themes together, Hoover explores the links between liberation and the politics of human development, and between identity and ideology.
Ideas are open to discussion, evidence, verification, and challenge.
Ideologies too often are not.