This engineering graphics text focuses on engineering design visualization using both sketching and geometric modelling techniques. The objective is to develop the essential design visualization abilities required to create, develop and convey design ideas. The presentation assists the reader in mastering the processes of visual thinking, brainstorming, sketching, modelling and documenting; coverage of perceptual and spatial visualization provides background material. The book is software independent so that no time need be spent covering specific CADD procedures.