This marks the 31st iteration of the fair, which champions self-taught, folk, naïve and outsider artists

Lisa Slominski's book expands the canon of "self-taught" and "folk" artists to include Hilma af Klint and the Mexican Muralists

While the fields are distinct, outsider art and psychedelic art overlap in significant ways, as an exhibition within the fair curated by Tomaselli makes clear

Exhibitions are taking place across several galleries, although some workshops that support artists with disabilities have been unable to take part due to challenges of pandemic

The Paris art fair had seemed defiant in the face of coronavirus but organisers say they could not “meet the legitimate expectations of its exhibitors”

The city's Americana week saw works by 20th century self-taught artists edging out traditional folk art and antiques thanks to a growing celebrity-studded client base