This book presents different research designs, their respective purposes and merits as well as their underlying assumptions. Research designs are characterised by a certain combination of knowledge aims and strategies for data production. An adequate design is the key to carrying out a successful research project. Nevertheless, the literature on design is scarce, compared to the literature on methods. This book clarifies the basic distinction between variable-oriented designs and case designs, and proceeds to integrated, comparative and intervention-oriented designs. A step-by-step guide to the design process and the choices to make is also included. The book's clear style makes it an excellent guide for master students and PhD students doing their first research exercises, while it is also useful for more experienced researchers who want to broaden their design repertoire and keep up to recent innovations in the field of research design.