The 25 strategies described in this book can be used to develop personal creativity, student creativity, and creativity in colleagues and staff members. The strategies are based on investment theory, a psychological theory of creativity, but any one strategy is consistent with many other theories. The investment theory of creativity asserts that creative thinkers are like good investors: They buy low and sell high. Whereas investors do so in the world of finance, creative people do so in the world of ideas by taking a unique, typically undervalued idea and convincing other people of its worth. The 25 ways to develop creativity explored in this book are: (1) modeling creativity; (2) building self-efficacy; (3) questioning assumptions; (4) defining and redefining problems; (5) encouraging idea generation; (6) cross-fertilizing ideas; (7) allowing time for creative thinking; (8) instructing and assessing creativity; (9) rewarding creative ideas and products; (10) encouraging sensible risks; (11) tolerating ambiguity; (12) allowing mistakes; (13) identifying and surmounting obstacles; (14) teaching self-responsibility; (15) promoting self-regulation; (16) delaying gratification; (17) using profiles of creative people; (18) encouraging creative collaboration; (19) imagining other viewpoints; (20) recognizing environmental fit; (21) finding excitement; (22) seeking stimulating environments; (23) playing to strengths; (24) growing creatively; and (25) proselytizing for creativity. (Contains 51 references.) (WJC)