THE writer has received considerable aid from a variety of sources in the preparation of this book.
Dr. Josephine MacLatchy, Associate Editor of the Educational Research Bulletin, has critically edited the several experimental editions of this book and the author is indebted to her for countless constructive suggestions. Dr. W. H. Cowley, Associate Editor of the Journal of Higher Education, made a painstaking analysis of the material presented in the experimental edition and made many constructive suggestions for its improvement. Miss Hazel Gibbony coöperated in the preparation of the three mimeographed editions of this book, the printed experimental edition, and the present commercial edition. Mr. William Clayton Pryor aided in the preparation of the chapter on photography and made many suggestions in the selection of the illustrations for this book. Members of the National Council of Teachers of English and many other teachers used the book in their classes and made valuable suggestions for its revision. Mr. William Lewin, chairman of the Council's committee on photoplay appreciation, gave excellent coöperation.
Mr. William H. Short, Executive Director of the Motion Picture Research Council, gave many suggestions as to how to make this book a constructive factor in the development of more discriminating tastes in the field of motion pictures.
Mr. Terry Ramsaye, Editor of the Motion Picture Herald, made suggestions for changes in the chapter dealing with the history of the movies, and secured for us pictures of