The document discusses key concepts of composition in photography including the differences between snapshots and photographs, the elements that composition depends on such as structure, balance and dynamic, and guidelines for effective composition including the rule of thirds and use of lines and shapes. Specific techniques are described like using horizontal, vertical and diagonal lines to guide the viewer's eye and create a sense of movement or dynamic within the frame. Tips are provided such as focusing on the background, keeping the image simple, getting close to the subject, and always being ready to capture photos.