Friedrich was the go-to for showing figures from behind – mainly, it transpires, because he wasn’t very good at faces ...

The Wanderer Above the Sea of Fog, 1818, by Caspar David Friedrich In The Open Window (1921), Juan Gris uses black and dark colours to show parts of the room that are in shade. Light tones are ...

Best known for his painting "Wanderer above the Sea of Fog" (c.1818), the Romantic artist Caspar David Friedrich is a "German icon" and an "Instagram meme". This year marks the 250th anniversary ...