One of the most talented contemporary authors of cutting-edge math and science books conducts a fascinating tour of a higher reality, the Fourth Dimension. Includes problems, puzzles, and 200 drawings. "Informative and mind-dazzling." — Martin Gardner.

"This is an invigorating book," proclaimed Timothy Ferris in The New York Times Book Review, "a short but spirited slalom for the mind." Author Rudy Rucker, one of the most talented contemporary authors of cutting-edge math and science books, conducts a fascinating tour of a higher reality, the Fourth Dimension. Includes problems, puzzles, and 200 drawings.