Gagosian (@gagosian)

Who: Global gallery franchise representing A-list artists for A-list clients.

What to expect: Frequent exhibition news and one of the most vibrant feeds detailing major art commissions by top-shelf brands. And, of course, a good deal of banter about artists on the gallery roster…including Damien Hirst, Takashi Murakami, Tom Sachs, and Julian Schnabel.