The Saudi soft power push, German pavilion at Venice and Halloween costumes: what to read this weekend
On the eve of her Guggenheim retrospective, a new book of esoteric drawings reveals the spiritualism behind Europe’s first abstract artist
Chris Wiley undertakes a gallery crawl during SP-Arte, taking in shows by Hilma af Klint, Paulo Nimer Pjota and Nicolás Paris
The fifth and final part of our series looking back at the most significant exhibitions from the past 25 years
In the early 20th century, Hilma af Klint created abstract paintings under the direction of a spirit guide.