4 Steps to Make a Mosaic 1. Press "Add Photo" button. Select pictures that would serve as fragments for building up your mosaic. The pictures would be transformed into thumb images and appeared in the fragment list. In most of the cases, 300~500 pictures are enough. 2. Press "Compose" button. Select the prefered size of the mosaic. Before you determine the size, make sure that you can access to resources to print out your final result. 3. Select a picture as the draft for constructing the mosaic. See tips in the following section for knowing how to choose a good draft. 4. The program would start matching and arranging the fragments according to the draft. Once finished, final result can be saved in BITM