In the first part the Introduction presents a brief periodization of the first three generations in Jesuit scholastics, whose cognitive psychology constitutes the subject-matter of this collective monograph Cognitive Psychology in Early Jesuit Scholasticism. In the second section, the chapter brings to attention two distinctive features of early Jesuit scholasticism, namely the metaphysical and theological horizon of psychological investigation and the conciliatory approach harmonizing doctrines of various authorities. In the third part, the Introduction outlines the content of the individual chapters of this book.