With Performing Sculpture, the Tate Modern in London presents the UK's largest ever exhibition of Alexander Calder, who was one of the ground-breaking artists of the 20th Century and pioneer of kinetic sculpture.
I got a sense of what "real" modern art can be by a brief visit to Tate Modern, not far from the Thames in London. I found a museum full of light and mechanics and cars and giant pianos hanging from ceilings. I think the real problem was American modern art.
I don't know how long I was there, but every moment was a treasure. I hadn't expected to find the Brancusis, so the surprise was even more wonderful in the Philadelphia heat which had given me a killer migraine as soon as I'd left the airport.
Sonia Delaunay is a beautiful name. Poetically dreamy it is a contemporary cousin to Isadora Duncan and conjures up floating scarves of swirling patterns, though not necessarily of the strangling kind.
Dumas's use of medium is refreshing and honest. Her works feel vibrant and of today; her use of watercolour and paint, on humble paper and canvas, reflect both the poetry and poverty of a South Africa that connects to the raw beauty of its geography.
American artists go to Paris, while Tokyo celebrates one of its own. Here's our list of the five most exciting contemporary art exhibitions opening at museums around the world during the first half of this year.
In a world drenched with 24/7 information, what's wrong with just experiencing art for yourself? Who says you have to "study up?" Museum exhibitions are designed to inform. You don't need to arm yourself in advance as if you're going into hazardous territory, you don't need to do homework.
Every society has constraints that offer opportunity for vision, freedom and courage. "Ai Weiwei: Never Sorry" by Alison Klayman is a documentary about a man who appreciates the possibilities and challenges of this opportunity in China.