The book is rich in content and extensive in scope. There are useful summaries in (and of) both parts. On the whole, the book is an exceptionally well-argued, high-level contribution to analytic single-agent and plural-agent action theory...it is rewarding especially for those who are interested in technical analyses. Also other philosophers will find his discussions interesting. Ludwig normally goes right into the core of important issues, and does not shy away from saying what he thinks about particular views or arguments. Undoubtedly the book is a great achievement and is strongly recommended for action theorists.

Raimo Tuomela, Notre Dame Philosophical Reviews

This book is without doubt an impressive achievement, and there is much to learn from the authors meticulous approach. I suspect few readers will be drawn in by Ludwigs focus on the logical form of action sentences, but much Of the book can be appreciated independently of this. The explanatory aim of his overall reductive project is refreshingly ambitious and wide in scope. The arguments by which he pursues it are illuminating and mostly convincing. I wholeheartedly recommend this book to those interested in action theory in general, and to those focused on joint agency in particular. I am looking forward to reading volume 2.

Olle Blomberg, The Philosophical Quarterly