Wikipedia:Articles for deletion/The Theory TK of Visual Proportions
I am just not convinced that it satisfies  based on having multiple independent and reliable sources with significant coverage. This appears to be a presentation of the research of an architecture professor, the creator of the article,  with very limited English. His writing is very difficult to follow. The article seems to be an effort to promote work of limited notability. He never explains in the text where the "TK" comes from. In his diagram, "TK" equals the square root of "TC" which is not defined other than being some rectangle related to the height of an observer. He apparently claims that the area of distinct vision of an observer who does not move his eyes around has a certain mathematical formula, similar to the "shape of a mental image," which has implications for how architecture should be proportioned. Apparently TK refers to Spanish or Catalan abbreviations related to the square root of a product related to human proportions. From study of the perception literature, I know that the actual "area of distinct vision" varies between individuals and is not the neat ellipse he claims. Even if it were, people in a building are not forced to stand immobile, and they scan the scene, looking up, down, left and right. I am surprised that his diagram still appears in the article, since it is clearly marked as being copyrighted by him, violating Wikipedia's licensing requirements. The theory was apparently privately published in 1982 in Castilian, not any evidence of notability. It was published again in 1997 in Catalan, and it is hard to be sure how independent that publication was, but it appears to be http://upcommons.upc.edu/e-prints/handle/2117/1883 associated with a university, though as an "eprints" from "upcommons" it does not appear to be a paper book.He mailed his publication to a disciple of famous architect Le Corbusier, who provided some kind words about his theory, hardly proof of notability. His references to show the importance of his TK theory include a http://www.icmab.es/icmab/gralinfo/news.html?start=191913 dead link supposedly showing that some building was constructed according to it
— User:Edison, 15:47, 26 October 2011 (UTC)
Stance: delete
Cited policy: WP:N (Wikipedia:Notability)