Daily Book Graphics #952

©1969 / The credit on the back cover reads: The design on the cover is based on the author's diagram of color serialization. Color interaction is much stronger in the upper section, with squares inside squares, than in the lower section, with circles in the squares (see p. 165).
There is a publisher's note that the author died after signing off on the manuscript, illustrations and captions but before drafting the acknowledgements. Quite sad.