Seems to be a very modern font. No identifier-service I found delivered a result.
I tried MyFonts WhatTheFont and several other services I found on Google, always without success.
Here are the WhatTheFont results
That doesn't narrow it down much, as there are many, many didones out there. And many of them are used for things like publication mast heads and luxury product branding--both of which are not uncommon to have commissioned custom typefaces. As such, this may very well be a custom typeface just for Art Basel.
That said, it appears the book was designed by Gavillet & Rust. Maybe shoot them an email and ask the source directly!
If you continue hunting, I'd focus on the E and the M as they both stand out to me as rather unique amongst didones (the M with the curved stems and the E with the thing 'T' crossbar and triangular serifs).
It's rather like EF Walbaum, although it's not identical; the serifs on E N and T differ but C and S are very similar: