Roger vonOeck's WHACK series -- cards, books, etc -- are an outstanding way to boost your level of creative thinking in many areas of life: professional, personal, and even parenting/relationships! Whack-y approaches to perception and problem solving foster a "don't panic" mentality in troubleshooting and problem-solving with their upbeat attitude, but don't let that fool you into thinking that they are not the seriously useful tools they are. Highly recommended, R.vanO's WHACK and related materials will enhance your way of thinking and doing almost anything to which you apply their concepts! 0:) S.Mako