Classic Architecture Studies by Chema Pastrana, via Behance. I love that they are in moleskin books.
arquigraph: Artworks by Architects to be Auctioned for Maggie’s Centres Untitled by Kyle Henderson. Image Courtesy of Maggie’s
Previous pinner said: "Moleskin art. I think I recognize this as the art of Mattias Adolfsson, but I could be totally wrong. Still, if you don't know who Mattias Adolfsson is, you should definitely look him up ^_^"