The book "Computer Arithmetic of Geometrical Figures. Algorithms and Hardware Design" deals with a full theory, as yet not well known, and with engineering solutions for the computer arithmetic of geometrical figures Ð planar and spatial. The book covers the codes structure, algorithms of coding and decoding figures, arithmetical operations with figures. The theory is supplemented by numerous examples. The arrangement of several versions of geometrical processor is considered Ð data representation, operating blocks, hardwares realization of coding, decoding and arithmetic operations algorithms. The processorÕs internal performance is appraised. The book is meant for students, engineers and for a users aiming to apply the computer arithmetic of geometrical figures in his own development of custom designed processors.