Contents. Hightemperature superconductivity in layered cuprates: overview (B. Maple). Crystal chemistry of superconducting rare-earths cuprates (B. Raveau, C. Michel, M. Hervieu). Single-crystal growth for science and technology (Y. Shiohara, E.A. Goodilin). Phase diagrams and thermodynamic properties (P. Karen, A. Kjekshus). Electron paramagnetic resonance in cuprate superconductors and in parent compounds (B. Elschner, A. Loidl). Positron annihilation in high-temperature superconductors (A. Manuel). RBa2Cu3O7 compounds: Electronic theory and physical properties (W.E. Pickett, I.I. Mazin). Electronic 4f state splittings in cuprates (U. Staub, L. Soderholm). Author index. Subject index.