Ian Lising has published a book on the Art and Science of the World Universities Debating Championships. Ian is a former Chair of World's Council. He was also a debater, organiser and judge at many many Worlds. He has also coached the University of LaVerne to prominance at Worlds including one team in the grand final. There is no greater expert on the World Universities Debating Championships than Ian.
I have already submitted my order for the book and I recommend anyone with an interest in the World Championships do likewise here.