Preface (U.H. Brinker).1,2-Hydrogen migration in carbenes: laser-flash photolysis and beyond (R. Bonneau, M.T.H. Lui). Chemistry of carbenes in molecular reaction vessels (U.H. Brinker, M.G. Rosenberg).Thermochemistry of carbenes (P. Chen).The carbene route to bridgehead double bonds (M. Jones, Jnr).High resolution fluorescence spectroscopy: determination of the zero-field splitting parameters of excited triplet states of aromatic carbenes (E. Migirdicyan, B. Kozankiewicz).Issues and challenges in the chemistry of alkylcarbenes (M.S. Platz).Persistent triplet carbenes (H. Tomioka).Laser flash photolysis studies of carbonyl carbenes (J.P. Toscano).Diamino-, Amino(oxy)-, Dioxy-, Amino(thio)-, Oxy(thio)-, and dithiocarbenes (J. Warkentin).