To survey the Newbery Award books as a group, to recognize literary qualities to discern trends and changing patterns, and to perceive the influence of the books singled out as the best in American children's literature was the purpose of this study. For ease of comparison the books were grouped according to genre. The main features of each type were discussed and books were examined in relation to the criteria and to each other. Among the findings, the study revealed that books of historical fiction and fiction showing life in other lands predominated in the early decades. A gradual progression toward the selection of realistic fiction set within the United States was observed. Over the fifty years that the Newbery Medal has been awarded, changes in subject matter and theme evolved. Settings became more functional and there was increased emphasis on characterization and theme. Young Americans were protagonists more frequently in recent years, and action shifted from the externally adventurous to the psychologically motivated. Although modifications in form, style, and technique emerged, the books, almost without exception, were well-written. (Author/WR)