  This is the first expository set of notes on SLE I have written since
publishing a book two years ago [45]. That book covers material from a
year-long class, so I cannot cover everything there. However, these notes are
not just a subset of those notes, because there is a slight change of
perspective. The main differences are:
  o I have defined SLE as a finite measure on paths that is not necessarily a
probability measure. This seems more natural from the perspective of limits of
lattice systems and seems to be more useful when extending SLE to non-simply
connected domains. (However, I do not discuss non-simply connected domains in
these notes.)
  o I have made more use of the Girsanov theorem in studying corresponding
martingales and local martingales.
  As in [45], I will focus these notes on the continuous process SLE and will
not prove any results about convergence of discrete processes to SLE. However,
my first lecture will be about discrete processes -- it is very hard to
appreciate SLE if one does not understand what it is trying to model.
