Several airfoil design procedures are described. The first is a procedure for designing an airfoil shape to have a prescribed surface pressure distribution. It is applicable to the design of supercritical as well as subcritical airfoils. The second is a computerized procedure based on the Theodorsen e-function design technique and is essentially incompressible. It also permits prescription of the pressure distribution, but with the additional feature that it provides simple means of controlling important airfoil parameters. The remainder of the discussion is concerned with the application of various techniques based on the e-function theory to specialized design problems.