Although the roots of phototherapy extend back to the late 1850's, it did not emerge as a distinct entity until the late 1970's. Growing interest has generated a substantial body of literature in the field. While photographs may be looked at concretely, as two-dimensional, their symbolic and metamorphic nature is a potentially powerful tool in psychotherapy. A client's willingness to bring and discuss photos in the therapy session can be viewed as a metamorphic statement regarding trust and willingness to be involved in therapy. The selection of photos conveys the way a client organizes and presents his/her world. The client's choice of events and symbols in the photographs can bring to awareness that which formerly took place at an unconscious level. The therapist, actively working with the many aspects of the client's visual metaphor and encouraging the exploration of the boundaries of vision, brings about a changed world view. The evolved perception and vision enlarges the client's ability to view the world and to create his/her place in it. (JAC)