Turner Prize 2014 winner to be announced
The winner of this year's £25,000 Turner Prize is set to be announced later at Tate Britain.
Duncan Campbell, James Richards, Ciara Phillips and Tris Vonna-Michell are on the shortlist for the prestigious and provocative contemporary art prize.
Between them, they employ audio, video, craft and design - but there are no traditional painters or sculptors.
Tate Britain's Lizzie Carey-Thomas said the shortlist was "more accessible" than in past years.
"It's not art about art, it's art about the world and other subjects everybody has experience of and can relate to," she said as the nominees were announced earlier this year.
Analysis by Will Gompertz, BBC Arts editor
The Turner Prize has been going for 30 years and it's matured beyond its anti-establishment, attention-seeking teenage years.
Damien Hirst's formaldehyde cows, Tracey Emin's beds and Martin Creed's blinking lights - all of those fun and games have gone.
It's a much more sober, respectful, polite, middle-aged prize. What I'm seeing is that the work is much more cerebral, but far more inward looking.
For me, Duncan Campbell is the standout artist. His video, It for Others - in some part a take on a 1953 film by Chris Marker about statues in the British Museum - is a substantial piece of work and I would be very surprised if he didn't walk away with the £25,000.
But Turner 2014 is quite weak. At the end of the exhibition, they invite people to post their comments and typically about 80% of people say the work is absolutely dreadful.
This year the comments have been vitriolic - about 95% of people said the work is dreadful.
Work by the nominees has been on show at Tate Britain since 30 September, with three of the four shortlisted artists showing film.
Richards is showing Rosebud 2013, a film which includes partially censored, erotic images from a book found in a Tokyo library.
One of Vonna-Michell's films, Finding Chopin: Dans l'Essex (2014), features salt marshes and the Essex coastline.
Campbell's films - one of which lasts almost an hour - tackle African art and colonialism and equations from Karl Marx's Capital Volume 1.
Phillips's installation Things Shared (2014)- the only one not to use film - involves screenprints on a variety of different materials including textiles, banners and walls.
The nominees are:
Dublin-born, Glasgow-based Duncan Campbell is nominated for a video that was part of Scotland's entry in last year's Venice Biennale.
His film, It for Others, is a reflection on a remarkable historical documentary about African art made by the French filmmakers Chris Marker and Alain Resnais in 1953.
It also includes a stunning dance sequence created with choreographer Michael Clark.
Campbell studied at the Glasgow School of Art. The city has produced four of the last nine Turner Prize winners.
Canada-born print-maker Ciara Phillips is another Glasgow-based nominee.
She has been shortlisted for a two-month project at The Showroom gallery in north-west London, where she set up a temporary print studio and invited artists, designers, and local women's groups to produce new screen prints.
She also set up The Poster Club, a collective of like-minded artists, in Glasgow in 2010, and creates screenprints, textiles, photographs and wall paintings.
The Scotsman wrote last year: "Phillips is a brilliant print maker who imbues the medium with a freshness that is remarkable, in posters, prints and textiles."
James Richards pieces together apparently unrelated clips from a wide variety of sources - including YouTube, VHS tapes from charity shops, other artists' films and footage he has shot himself.
In one video, the Cardiff-born artist spliced together a clip of Heather Langenkamp in Nightmare on Elm Street with a girl drawing an eye in an instructional video and footage of space, all of which shared the same zoom speed.
He has been shortlisted for a 13-minute black-and-white video that was part of a group show at the Venice Biennale.
The Turner Prize citation said he created "poetic meditations on the pleasure, sensuality and the voyeurism that is within the act of looking".
Tris Vonna-Michell explores methods of storytelling, combining spoken word performances, recorded narration, slide-shows and printed photographs.
His nomination is for an installation at the Jan Mot gallery in Brussels that used two slide projections and an audio narration relating to his mother's childhood in Berlin.
Another graduate of Glasgow School of Art, his work was last seen in the UK at the Baltic gallery in Gateshead, with an installation inspired by the National Trust's nearby Gibside property.
His "fragments of information, detours and repetitions designed to confuse and enlighten in equal measure", the Turner nomination said.