This document discusses various genres of commercial photography and their typical codes and conventions. It describes genres like advertising, fashion, still life, editorial, photojournalism, wildlife, and landscape photography. For each genre, it provides examples of photographic techniques commonly used, such as rule of thirds, depth of field, lighting, color schemes, and more. It concludes by identifying codes and conventions that are frequently used in commercial photography based on the analysis, such as use of shadows, black and white/sepia, depth of field, experimental angles, and texture.