This chapter on design of blanking, piercing, progressive and compound dies presents a detailed account of the design of die plate thickness along with the design of other members of the press tool, viz., die shoe, top and bottom bolster plates, stripper plate, primary and end stops and pilots. It explains these with sketches. The chapter also discusses the design of a progressive die. A rule of thumb formula with a typical sketch has also been provided for a rough calculation of the die plate and other associated plate thicknesses. In addition to die design principles, this chapter dwells on the method of determining the center of pressure for an unsymmetrically profiled blank, wherein the center of pressure does not lie at the axes of symmetry. Finally, a specimen calculation of an unsymmetrical profile for determining the centre of pressure is shown.