Ebook: Mathematical magic show : more puzzles, games, diversions, illusions other mathematical sleight-of-mind from Scientific American

Nothing -- More ado about nothing -- Factorial oddities -- The cocktail cherry and other problems -- Double acrostics -- Playing cards -- Finger arithmetic -- Moebius bands -- Ridiculous questions -- Polyhexes and polyaboloes -- Perfect, amicable, sociable -- Polyominoes and rectification -- Knights of the square table -- The dragon curve and other problems -- Colored triangles and cubes -- trees -- Dice -- Everything