Illustrating the Mind > The Design of Psychology Book Covers

How would you illustrate matters concerning the mind? Well most of these Pelican and Penguin book covers use circles in some form as the shape of choice, add to that a few crazy squares, an ink blot and the occasional photo. The indistinct nature of the content allows rather graphic, abstract forms to occur - me likey. This set is also viewable in my Flickr gallery 'Illustrating the mind > Psychology Book Covers' - http://www.flickr.com/photos/kathykavan/galleries/72157625545004808/