Traditionally, the back of a calendar has a collage of pictures from throughout all calendar. Rather than just doing a boring grid of pictures like most calendars have on the back, we are going to make a more unique, creative collage. The video below describes the set up process. This handout explains the process, however, don't use the document dimensions and resolution. The video below will explain how to find the measurements you need.
Once your square on the document measurements, check out the video below for assembling the collage. Keep in mind that overlapping the photos is crucial. If they don't overlap, you'll just make holes when you start to blend the and blur the edges of each photo.