Abstract: An operation device includes a detection part configured to detect an operation applied to an operation surface so as to calculate a detection point on the operation surface, a target position setting part configured to set a target position on the operation surface based on information retrieved from an operated object, a distance of overshoot setting part configured to set a distance of overshoot based on the target position set, the distance of overshoot being predicted a distance to be overshot by the detection point from the target position while the detection point moves, a notification region setting part configured to set a notification region configured to perform notification based on the target position and the distance of overshoot, and a notification part configured to notify that the detection point has reached the notification region.