The product is a set of six hardcover children's books titled "LEGO DC Comics Super-Heroes Dark Knight." Published by DK in 2018, the books are part of the LEGO book series and feature illustrations. Aimed at a variety of audiences, including young adults, children aged 4-12, and adults, the books explore the world of awesome heroes and super heroes from the DC Comics universe, such as Superman, Batman, and other LEGO characters. Perfect for fans of LEGO, toys, and leisure activities, these books offer an engaging and visually appealing narrative for readers of all ages.