To determine if there were any consistent tendencies toward the abstract or toward impressionism in the illustration of children's books between the years 1966 and 1986, a study examined the illustrations of Caldecott winners and Honor books. The study replicated John Stewig's study (using his evaluation instrument) of the same topic which covered the years 1938 through 1966. Stewig found no appreciable trends toward or away from realism in the illustrations of the Caldecott recipients from 1938-1966. In contrast, results of this study indicated a trend from 1966 to 1976 toward the abstract, and from 1977 to 1986 a definite trend toward realism. (Two figures and 4 tables of data are included; 18 references are attached.) (SR)