Harry Callahan famously remarked that ‘a man’s got to know his limitations’, but in the history of American cinema no star director has remained as topical or as significant as Clint Eastwood. The depth and scope of Eastwood scholarship and research matches his status, exposure, and longevity. However, its daunting quantity (and variable quality) makes it difficult to discriminate the useful from the tendentious, superficial, and otiose. Now, this new four-volume Routledge collection, compiled by Laurence Knapp, author of one of the first critical studies of Eastwood’s work, meets the need for an authoritative reference work to make sense of a vast literature and a continuing explosion in research output. Users will now be able easily and rapidly to locate the best and most influential critical scholarship, work that is otherwise often inaccessible or scattered throughout a variety of specialist journals and books.