Wordplay: Ambigrams and Reflections on the Art of Ambigrams
"...a terrific surprise...Wordplay isn't a book of graphic art as much as it is one of philosophic art...Wordplay is a tour de force... By showing us the magic of words with more than one point of view, Langdon's modest volume might get us all thinking about other points of view.  other people's points of view." --New Orleans Times-Picayune, April 26, 1992"This is a lot of fun..." --Los Angeles Times/Book Review, May 10, 1992