Surface melting: dry, slippery, wet and faceted surfaces

We briefly review surface melting and related forms of high-temperature surface disordering. Apart from the familiar low-index crystal faces also vicinal surfaces will be considered. In addition to surface orientations which undergo "complete" surface melting and crystal faces which are non-melting, there are orientations which exhibit "incomplete" melting, and others which prefer to facet under the influence of surface melting. The relation between the surface behaviour and the high-temperature equilibrium crystal shape will be addressed.