Palmistry / Three Aspects

http://en.wikipedia.org/wiki/Palmistry

1. Chirognomy: A study of genetic hand shape, finger shape, finger nails, texture, consistency, gesture, etc that is used by hand analysts in order to gain insight into aspects of the inner workings of the personality. 
2. Chiromancy: A study of the lines within the palms. From ancient times until the 19^th century this was basically the only aspect of palmistry which existed. 
3. Dermatoglyphics: A study of skin ridge patterns and formations found on the fingertips and within the palms themselves. Much research has and continues to be done with regard to how certain patterns may be indicative of genetic problems.