Kenneth A. RussellBooksLogic BrainteasersMensa Logic PuzzlesMensa Brain Workout PackMensa Challenge Your IqThe Times book of IQ testsThe book of IQ testsThe crossword puzzle bookIQ Challenge (ABD)Test your IQJuegos de Ingenio 1The new IQ testJuegos de Ingenio IIBook of I Q TestsDiscover your IQ potentialAuthor data: Open Library