Combination printing is a photographic technique in which multiple negatives are printed onto a single sheet of paper to create a composite image. This method allows photographers to merge different exposures, scenes, or elements into a single, seamless photograph, often for artistic, narrative, or surreal effects. Popular in the 19th and early 20th centuries, combination printing requires careful alignment, masking, and exposure control to achieve a realistic or visually striking result. It remains an important technique in both historical photography studies and modern creative photographic practices.