The product is a photography magazine titled "Sleepwalking: Aperture 247" by Alec Soth, featuring work by Sophie Calle and Hofer. Published by Aperture Foundation, it is part of the Aperture Magazine Series and measures 30.2 x 23.2 x 1.6 centimetres with 144 pages. The magazine, written in English, includes illustrations and falls under the genre of photography criticism. This edition, released in 2022, offers insights into the world of photography through the lenses of the featured artists.