Abstract
Mates’ book has already been widely read and justly praised. It is full of clear, interesting arguments on most of the topics which engage contemporary readers of Leibniz, expertly and extensively marshalls texts, and includes a short but unusually good biography and outline of Leibniz’s system. Since I write here for an unusually well-informed and well-motivate audience, I allow myself compressed formulations of controversial arguments, antecedently acknowledging need for elaboration. I focus on a cluster of interconnected, central concerns: the nature and role of nominalism, individual concepts, contingency, rational explanation, bestness and perception.