Book excerpt: Personal representation is a necessary element to achieve a high quality of democracy. Many studies of electoral systems, by focusing on the allocation of seats to parties, have neglected the study of this essential dimension. In democratic countries different ballot forms and rules exist to vote for individual candidates and to allocate seats to individuals. This book studies the different voting procedures and formulas for personal representation, their origins and consequences, their compatibility with party representation and the strategies and normative criteria for electoral system choice. It presents an analytical framework, new empirical data, an innovative classification of electoral systems, and reproduction of ballots from different countries. The different chapters also offer a number of comparative and single-case studies on candidate selection and on voting in single-seat districts, closed party lists, primary elections, mixed systems, open lists with preferential votes, and open and ordinal ballots.