A pictorial journal of the Electrical Discharge Machining and Electro Chemical Machining processes is presented. A brief historical background and description of these processes is included. EDM and ECM applications are a solution to machining materials which cannot be economically machined by conventional methods. EDM and ECM applications are a solution for the machining of heat-treated metals, exotic metals, and special alloys which are impossible to machine by conventional methods. EDM and ECM applications are a solution to machining geometrical configurations which otherwise would have to be partially machined then hand worked. EDM and ECM applications are a solution to machining without mechanical or thermal distortion. EDM and ECM applications are a solution to machining dies in a single piece configuration, thereby eliminating segmentation. EDM applications are a solution to obtaining servo-port shapes and contours that were either impossible before or were impractical from the standpoint of cost and/or bushing rigidity, and alignment problems. EDM has several features that lend it to production work. It can cut any die material at a cost as low as that for steel dies. Worn surfaces of forging dies usually do not require finishing; the die can be taken directly from the machine to the forge hammer. Since the electrode moves into the work automatically, machines can be left unattended for long periods of time. Technological advances have elevated these processes to a production basis. (Author).