The main aim of this final essay is to draw on the insights gathered in the Debate “Do Referendums Enhance or Threaten Democracy” to inform future normative and empirical discussions about the design of popular vote processes. We first offer some clarifications regarding three of the concerns raised by respondents about our introductory essay. We then propose a systematic classification of the lines of variation along which the design of popular vote processes usually varies. More precisely, we highlight nine lines of variation: trigger, origin of the text, legal basis, scope, trigger requirements, time, ballot, information, and decision rule. We conclude by emphasizing the relevance and necessity of debating the formal institutional design of popular vote processes.