1. A printing device for selecting and printing a recommended image from among a plurality of images, comprising: an evaluation value determining module configured to determine, for each image, a first evaluation value for a prescribed evaluation item; a grouping process module configured to perform a sorting process to sort the plurality of images into groups of similar images; a recommended image designating module configured to designate, for each group, a recommended image from among the images belonging to the group, based on the first evaluation value; and a printing process module configured to print the designated recommended image.