Conformal Field Theories: From Old to New: A short review of recent work, including the general problem of constructing the actions of new conformal field theories from old conformal field theories.[Postscript]
Conformal Field Theory: a case study: This is a set of introductory lecture notes devoted to the Wess-Zumino-Witten model of two-dimensional conformal field theory.
Introduction to Conformal Field Theory: A POSTSCRIPT file containing a set of introductory lectures on conformal field theory. Direct download will start.