The document provides an overview of basic strobe positioning techniques for underwater photographers. It defines common housing and strobe equipment terms. It then gives guidelines for strobe placement in different situations, including macro, wide angle, and shooting vertical subjects. Strobe positioning is adjusted based on factors like subject distance, use of flat or dome ports, and the goal of avoiding hot spots or flares in the final image. Diagrams demonstrate the principles of pivoting strobes in and out and adjusting their height and distance from the housing for various photographic styles and conditions.