1. Power in voting bodies : The Shapley-Shubik index of voting power ; Weighted voting bodies ; The power of voting blocs ; Committees ; Decisions made by two or more voting bodies -- 2. Voting methods for more than two alternatives : The weaknesses of sequential pairwise voting ; Plurality voting ; Plurality elimination procedures ; The Borda count ; Condorcet voting methods ; Results of the axiomatic approach ; Application to environmental decision making in the Bow River valley ; Application to multi-objective decisions by a single decision-maker -- 3. Recent approaches to voting using intensities of preference : Cardinal utility ; Approval voting ; Voting by bids ; Vickrey's scheme for sealed bidding ; A preference revealing process: the Clarke tax ; Problems with implementing the preference revealing process