Today, the average proportion of women members of parliaments stands at a mere 17.2 per cent. Only 19 countries in the world have achieved the goal of 30+ per cent women's representation in national legislatures, a goal which was adopted by the Beijing Process in 1995. There are two important variables that affect women's political representation: the electoral system and the use of quotas for women. Combined in different ways, these variables have different results on women's participation. 'Designing for Equality' provides an overview of how electoral systems function with different kinds of quotas for women. It assesses how women's representation can be increased under different combinations of electoral systems and quotas. This publication aims to serve as a reference tool for all those who work to increase women's representation in politics.