Abstract: This chapter begins by loosely defining the concepts of ideology, psychology, and law and providing a brief history of their relationship with each other. As the 1990s turned to the 2000s, the links between ideology, psychology and law were growing stronger as legal theorists began looking to the mind sciences, mind scientists started studying ideology, and as ideological distinctions became more salient in the lawmaking process. After explaining why this volume came together when it did, this chapter offers an overview of the general sections and the individual chapters and comments in the book.