Kayne Griffin Corcoran.
Diary: Grimes hits the decks, the art of small business and Frieze hits the rocks (in a good way)
Plus Miss Ellie gets a makeover and gallerists move up a gear
Turrell's Roden Crater gets some starry support
Proceeds from sales of colour-shifting works by the artist will go toward a fundraising and awareness-raising initiative for the crater