Forty-five papers from the January 2001 conference share recent research in non-commutative field theories, D-brane dynamics, string field theory, tachyon condensation, supersymmetric field theories, black holes, superstring phenomenology, the AdS-CFT correspondence, cosmological solutions, M-theory, and matrix theory. Topics include free energy and critical temperature in eleven dimensions, quantum gravity in de Sitter space, string physics at low energies, bulk couplings to non-commutative branes, and a matrix model of a two-dimensional black hole. No index is provided. Annotation (c) Book News, Inc., Portland, OR (booknews.com)