Spider-Man and Catwoman advertise for Chech bookstore Shakespeare And Sons . A campaign by Publicis, with illustrations credited to Petr Herold, Sattons (but no copyright information on the characters in sight).
Ads of the world provides more info on the books (quoted) :
Spiderman is reading book BEETLES. It is a classic and timeless childrens book written by Jan Karafiat in 1867. It tells stories of a young beatle from his birth to falling love and other adventures and challenges that life brings. It describes wonderfully the psychological growth of a young being and all that one sees and learns about the world.
CatWoman is reading book ALL ABOUT DOGGIE AND PUSSYCAT. It is a chlidrens book by Josef Lada known and loved by generations of children and their parents. All of their stories and adventures relate to their living together and all the things they experience. From keeping the house to making a cake.
(via 2WENTY 4OUR)