By definition a multiple exposure is the superimposition of two or more exposures to create a single image.
My goal has been to use this photographic technique to capture the feeling of a memory, of a place less pristine than our high resolution world, blurring some details and layering cityscapes to forge a mental postcard.
For the last 20 years, I have been creating a collection of multiple exposure photographs of at least one City from every State across the United States. Each cityscape is made the old-fashioned way with a Canon AE1 35mm camera and film; there is no digital manipulation in creating these photographic collages.
In most of my creations there are five or more layers and each single image may be anywhere from a single frame to the whole 35 mm roll. The images are heavily layered and tend to reveal themselves over time; the longer you look at them, the more you see hidden details.