A method for the design and production of improved pressure reducing therapeutic shoe insoles for a person. The method includes the steps of measuring a three dimensional image of a foot and the distribution of plantar pressures applied by a person's foot being measured for a pressure reducing insole. Selecting a shoe insole outline or template which best fits or corresponds to the shape of a foot being measured. A foot display is generated which combines and aligns the three dimensional foot shape and the plantar pressure distribution. A three dimensional insole display is generated which combines and aligns the foot shape and plantar pressure distribution, and includes modifications based upon selected pressure contour lines identified within the foot display which are above predetermined pressure thresholds.