This is the most recent of the Patai Updates, the "spin-off" series from the "Chemistry of Functional Groups". It covers hypervalent silicon compounds; siloxane polymers and copolymers; organosilicon derivatives of phosphorus; arsenic; antimony; and bismuth; chemistry of compounds with silicon-sulphur; silicon-selenium and silicon-tellurium bonds; transition-metal silyl derivatives; and chemistry of compounds with silicon-nitrogen bonds.