1. A method comprising performing a machine-executed operation involving instructions, wherein the machine-executed operation is at least one of: A) sending said instructions over transmission media; B) receiving said instructions over transmission media; C) storing said instructions onto a machine-readable storage medium; and D) executing the instructions; wherein said instructions are instructions which, when executed by one or more processors, cause the one or more processors to perform the steps of: displaying on the screen of a display device thumbnails of a plurality of digital images; receiving a first user input that selects a subset of said thumbnails, said subset including multiple thumbnails; displaying in a comparative mode on a portion of the screen a set of images, each image of the set corresponding to a digital image of a selected thumbnail in the subset of selected thumbnails; wherein the comparative mode comprises: positioning the each image of the set of images in proximity to each other; and while displaying said set of images in said comparative mode: receiving user input indicating a particular image manipulation on a selected image; and manipulating the selected image based on the user input.