 In 1970, Mann and Stuart Cohen as principal designers at Gruzen & Partners Architects won a "Progressive Architecture Magazine" Design Awards Citation for "Low Income Public Housing for Queens, New York" (January 1970, pp.98–99), Annual Awards Issue.Mann has written many astrology books based on the concept of a logarithmic time scale derived from the work of G. I. Gurdjieff, P. D. Ouspensky and Rodney Collin, and contributing to an application of astrology called "Life Time Astrology".