Preface; List of abbreviations; List of symbols; 1. Clouds: definitions and significance; 2. Cloud particles and their representation in cloud models; 3. Basic equations; 4. Numerical methods used in cloud models; 5. Warm microphysical processes; 6. Microphysical processes in ice and mixed-phase clouds; 7. A powerful tool for cloud investigation; Appendix A. Tensors; Appendix B. Collision efficiency between drops and turbulent enhancement factor; Appendix C. Graupel-drop collision efficiency and kernel; Index.