Litany of the Long Sun: The First Half of 'The Book of the Long Sun' -- Gene Wolfe, Paperback

Litany of the Long Sun contains the full texts of Nightside the Long Sun and Lake of the Long Sun, that together make up the first half of The Book of the Long Sun. This great work is set on a huge generation starship in the same future as the classic Book of the New Sun (also available in two volumes from Orb).