A pretty brief book (two long essays). S.L.A. Marshall has something of a reputation nowadays (especially after Hackworth's "About Face" came out), but has produced some good stuff. This essay, on how weight can kill an assault and how staff tends to overburden the soldier makes some great points. And there are some very funny bits that every commander should read, especially the one about the one commander who put on everything that staff had dictated a common soldier should carry--and presented himself to the general of the unit (who obviously had no clue of what his soldiers were being asked to carry!).