Two to check out this month if you are hungry for images. Two exhibitions of works on paper, photography and collage respectively, that turn the focus onto the medium itself. Two group shows that offer a historical foundation in dialogue with current art practices. Both key for their relevance in our image-saturated age and also for their serendipity in showing works from different periods by the same artists. Just a hint: See Barbara Kruger’s powerful shout-out large frames at Skarstedt and then have a peek of a rare-to-catch small collage at Luxembourg & Dayan.