Power Indices Taking into Account Agents’ Preferences -- The Sunfish Against the Octopus: Opposing Compactness to Gerrymandering -- Apportionment: Uni- and Bi-Dimensional -- Minimum Total Deviation Apportionments -- Comparison of Electoral Systems: Simulative and Game Theoretic Approaches -- How to Elect a Representative Committee Using Approval Balloting -- On Some Distance Aspects in Social Choice Theory -- Algorithms for Biproportional Apportionment -- Distance from Consensus: A Theme and Variations -- A Strategic Problem in Approval Voting -- The Italian Bug: A Flawed Procedure for Bi-Proportional Seat Allocation -- Current Issues of Apportionment Methods -- A Gentle Majority Clause for the Apportionment of Committee Seats -- Allotment According to Preferential Vote: Ecuador’s Elections -- Degressively Proportional Methods for the Allotment of the European Parliament Seats Amongst the EU Member States -- Hidden Mathematical Structures of Voting -- A Comparison of Electoral Formulae for the Faroese Parliament.