The product is a collection of four paperback books from "The Mammoth Book of Best New Horror" series edited by Stephen Jones. It includes works by renowned authors such as Clive Barker, Neil Gaiman, Stephen King, and Joe Hill, among others. The books feature a variety of horror short stories centered around themes like monsters, fear, and good versus evil. Each book in the lot offers a selection of chilling narratives in the horror genre, making it a compelling read for fans of supernatural and suspenseful storytelling.