An information processing device according to the present invention is included in an information processing apparatus and outputs guidance information for an operation performed for the information processing apparatus by a user. In the information processing device, a user information acquisition unit identifies a user who is operating the information processing device, and an input control unit identifies the type of operation performed by the user. The information processing device also includes an operation history database for storing operation history information unique to the user and a voice guidance database for storing at least one piece of guidance information on the operation. A guidance selection unit selects appropriate guidance information on the basis of the operation history information on the operation unique to the user, and a voice output unit outputs the selected guidance information.