Reasons is a pretty good introduction to current debates on the rationality of action. Wiland covers psychologistic, factualist, constitutivist and Anscombean accounts of what constitutes a rational action. In the end, he sides largely with Anscombe and her followers. Though the book is well written and, at times, entertaining, I found there to be a large number of typos - almost one per page. This is especially frustrating because the text itself is technical and, at times, dense. So a typo can significantly change the meaning of a statement. Take, for example, this statement: "[t]o meet the factualist challenge, we need to think more about how a consideration like 'that there are rats in my yard' is or is related to a reason for buying poison" (156). Maybe newer editions have these typos fixed but at least in the edition I read, I found they got in the way of enjoying the text.