Hands are miraculous tools that are used both for sensing and actingon the world. Although a great deal of research has been conducted onhuman hand function, there is no coherent presentation of it to guidethose seeking to understand its current state. The proposed volumesurveys normal hand function in healthy individuals and presents a newconceptual framework for organising and analysing what is known aboutit. Jones and Lederman organise human-hand research on a continuumthat ranges from activities that are essentially sensory to those with astrong motor component. They distinguish four broad categories alongthe continuum: tactile sensing, active haptic sensing, sensory-guidedaction, and non-prehensile skilled movements.