Across the listings, Dark Knight books are offered in paperback, hardcover, and mixed-media formats.
Listings place the works at different points in the Dark Knight continuity: one story reimagines Batman 10 years after his retirement, a sequel is set three years after that story, and another listing is described as the final entry in the Dark Knight trilogy.
Dimensions vary from compact paperbacks to large hardcovers: heights range roughly 8.45" to 12.8", widths about 6.34" to 8.6", and depths approximately 0.4" to 2.2" across the listings.
Listings categorize these as Comics & Graphic Novels in the superhero sub-genre, and they show a suggested reader age of “22 Years and Up.”
Deluxe and Absolute-format editions list extras including a new afterword, tribute cover galleries, numerous sketches and previously unseen material, over 150 variant covers, a sketchbook gallery with behind-the-scenes content, and a prequel story.