The Struggle for Unity: Colour television@ the formative years traces the evolution of colour television from 1928@ when rudimentary colour television was demonstrated for the first time@ to c. 1966@ when the NTSC system and its variants@ the PAL and SECAM systems@ became widely available for the entertainment@ education and enlightenment of society. Among the many topics discussed in the book@ mention is made of the following: compatibility and non-compatibility; mechanical and all-electronic systems; field@ line and dot sequential scanning; bandwidth constraints and band-sharing techniques; the CBS-RCA conflict; the relative merits of the different systems; the attempt to achieve unity of purpose in Europe; standards; and the development of colour cameras and display tubes. The book@ which is based predominantly on written primary source material@ does not simply provide a chronicle of dates and descriptions of events@ devices and systems. Rather@ it discusses the essential factors of colour television history from a general@ technical and political viewpoint. Great care has been taken to ensure that an unbiased@ accurate and balanced history has been written. Numerous references are given at the end of each chapter and the book is profusely illustrated. Author R. W. Burns