This work focuses upon two propositions expressed by the painterFranz Marc. Thoughtfully-illustrated, rigorous, historically-basedand well-written, Brealey's book offers a well-structured and well-researchedanalysis of the art historical and philosophical literature involved.The writing is lucid, as is the attempt to synthesise art historyand philosophy. Attempts such as these are not made often enough inthe literature when in fact such endeavours ought to be fundamentalto philosophical aesthetics. The entire project is a sound one andshould become essential reading for professional scholars and studentsof aesthetics.