first into some of the reasons why the picture inside so often misleads men in their dealings with the world outside. Under this heading we shall consider first the chief factors which limit their access to the facts. They are the artificial censorships, the limitations of social contact, the comparatively meager time available in each day for paying attention to public affairs, the distortion arising because events have to be compressed into very short messages, the difficulty of making a small vocabulary express a complicated world, and finally the fear of facing those facts which would seem to threaten the established routine of men's lives.
The analysis then turns from these more or less external limitations to the question of how this trickle of messages from the outside is affected by the stored up images, the preconceptions, and prejudices which interpret, fill them out, and in their turn powerfully direct the play of our attention, and our vision itself. From this it proceeds to examine how in the individual person the limited messages from outside, formed into a pattern of stereotypes, are identified with his own interests as he feels and conceives them. In the succeeding sections it examines how opinions are crystallized into what is called Public Opinion, how a National Will, a Group Mind, a Social Purpose, or whatever you choose to call it, is formed.
The first five parts constitute the descriptive section of the book. There follows an analysis of the traditional democratic theory of public opinion. The substance of the argument is that democracy in its
