Professor Katz of the University of Stockholm has brought together this large collection of graphic materials used by psychologists all over the world. Although many of the pictures and diagrams are well known ones still in use in the laboratories, there are some rarely found in the text books, and having only historical value. The groupings of the illustrations are arbitrary and some branches of psychology are not included. However the collection represents a serious attempt to assemble material that will be stimulative as well as informative and entertaining.