Prior meta-analytic studies have provided evidence for the effectiveness of creativity training. In the present study, 156 training programs were obtained and a content analysis was used to appraise these programs with respect to: a) cognitive processes, b) training techniques, c) media, and d) types of practice exercises. A cluster analysis was used to determine the major types of training, as reflected in these variables, and meta-analytic data were used to assess the effectiveness of each type of training. Overall, 11 common types of training were identified, all of which appeared to have some value. However, some types of training, specifically idea production and cognitive training, proved particularly effective while some commonly applied training strategies, specifically imagery training, proved less effective. The implications of these findings for the design of creativity training are discussed. (Contains 1 table.)