Brushes

Draw: generic detailing; pushes surface in or out

Clay: seems to be the same as draw

Clay Strips: piles on strips of clay on top of a surface

Layer: tries to push the surface in or out "beneath" detail work; ex tries to maintain any smaller sculpts on top of the surface being pushed.

Crease: pulls vertices together to create or reinforce sharp edges.

Pinch: pulls vertices together harder than crease does; can pinch edges created by crease to make them even sharper.

Grab: stretches topology around without adding new geometry

Snake hook: stretches topology around but adds geometry to the space created by the stretch

Inflate: fattens up a region; ex. a noodly region created by the snake hook

Nudge: tries to smudge/push details

Rotate: spins details inside the brush area

Mask: paints a mask which will not be modified by other brushes

Sculpt settings

Dyntopo: creates topology to support brush strokes; when disabled will only move around vertices already in the mesh.

Relative detail: dyntopo is relative to the viewport and not the world; ex. the brush stays the same size when you zoom but affects different pixels.