Content: H. Yersin: Triplet Emitters for OLED Applications. Mechanisms of Exciton Trapping and Control of Emission Properties.- S.-W. Lai, C.-M. Che: Luminescent Cyclometalated Diimine Platinum(II) Complexes. Photophysical Studies and Applications.- A. Hauser, M.E. von Arx, V.S. Langford, U. Oetliker, S. Kairouani, A. Pillonnet: Photophysical Properties of Three-Dimensional Transition Metal Tris-Oxalate Network Structures.- B. Bussiere, R. Beaulac, H. Belisle, C. Lescop, D. Luneau, P. Rey, C. Reber: Excited States and Optical Spectroscopy of Nitronyl Nitroxides and Their Lanthanide and Transition Metal Complexes.- C. Daniel: Electronic Spectroscopy and Photoreactivity of Transition Metal Complexes: Quantum Chemistry and Wave Packet Dynamics.- P.A. Tanner: Spectra, Energy Levels and Energy Transfer in High Symmetry Lanthanide Compounds