In The Structure of Affine Buildings, Richard Weiss gives a detailed
presentation of the complete proof of the classification of Bruhat-Tits
buildings first completed by Jacques Tits in 1986. The book includes
numerous results about automorphisms, completions, and residues of these
buildings. It also includes tables correlating the results in the
locally finite case with the results of Tits's classification of
absolutely simple algebraic groups defined over a local field. A
companion to Weiss's The Structure of Spherical Buildings, The
Structure of Affine Buildings is organized around the classification of
spherical buildings and their root data as it is carried out in Tits and
Weiss's Moufang Polygons.