Reflexology is a style of massage based on the belief that points on the feet (and hands) correlate to other areas of the body. The focus of the techniques is on the feet, with the feel of a Swedish massage, with slightly different hand movements and a different intention. The practitioner may hold certain points longer than others and may have a lighter touch.
Generally recommended as an addition to a Swedish session, as it is such a focused area. However, you can ask your practitioner to designate more time on this work.