This chapter introduces the book as a hands-on guide addressing the practical application of systematic comparative methods for ethnographic data generated through social movement studies and research into other complex phenomena. This chapter explores the novelty, importance, and contribution of this book. While there are other books on Qualitative Comparative Analysis (QCA), this contribution offers a usable and unique hands-on, practical approach that offers easily accessible guidance to a complex analytical method. The book is anchored in social movement outcomes, ethnographic data, and QCA; however, most of the attention is focused on showing how complex interactions and outcomes can be assessed in other, policy-relevant research.