The document provides instructions for installing an ODL tubular skylight. It describes the basic 5-step installation process: 1) determining the ceiling location, 2) determining the roof location, 3) cutting the hole in the roof, 4) cutting the hole in the ceiling, and 5) assembling and installing the tubular skylight components. Key aspects of ODL tubular skylights are that they provide natural light with minimal installation disruption and lower cost compared to traditional skylights.