I'm reading Evolution and Kinship (human). It's a nice little (176 pages) theoretical mathematical treatment of human kinship in the Hamiltonian spirit. The first chapter is a philosophical overview that discusses the author's methodology and angle on the differences within cultural anthropology. Published in 1988 it is a little dated, but I recommend readers check it out at their local college library! (nice companion if you are reading something thick, specific and data-filled)