Contents: Qualitative Description of Liquid Properties Excluded Volume, Free Volume and Hard Sphere Packing Thermodynamics, Equipartition of Energy and Some Scaling Properties Structure, Forces and Thermodynamics Diffusion Viscosity Heat Transport Chemical Short-Range Order: Molten Salts and Some Metal Alloys Bonds, Rings and Chains Supercooling and the Glassy State Non-Newtonian Fluids Turbulence Liquid-Vapour Interface Quantum Fluids.