A few clear cases are Peter van Inwagen's An Essay on Free Will, John Martin Fischer's The Metaphysics of Free Will, and Robert Kane's The Significance of Free Will
Alfred Mele's Autonomous Agents merits entry into this elite collection.
Thanks to Alfred Mele for emphasizing the need to be clear about this point.
(8.) Thanks to Alfred Mele for bringing this issue to my attention.
(10.) I am indebted to Alfred Mele for mentioning this possibility.
(12.) Thanks to Alfred Mele for suggesting the device of an alleged mind-reader's threat.