This extensive text (517 pages of full text, 554 overall) is an invaluable new contribution to Kant studies by one of the most important commentators of the last half century. Allison’s ambitious goal here is to give a developmental and systematic account of Kant’s thoughts on free will, spanning nearly the entirety of Kant’s writing life. Not all the texts Allison discusses here explicitly address free will, but his extensions of them to free will are plausible and interesting throughout. It is impossible to offer a comprehensive account of a work of such breadth here, so I will offer just a sketch of its contents, highlighting a few issues that I found to be particularly fascinating, and touching on one point of critique.
Chapters 1–5 address Kant’s views in his stages of development prior to the first Critique, with a focus on various forms of compatibilism which Allison reads...
