Three artists with strong links to Scotland this morning unveil their shows for the most prestigious award in contemporary art, the Turner Prize, at London's Tate Britain.

Duncan Campbell and Ciara Phillips, who still live and work in Glasgow, as well as Tris Vonna-Michell, all attended Glasgow School of Art. They are in the running for the £25,000 prize, now in its 30th year, along with London-based artist James Richards.

It was announced today that the winner will be announced live on Channel 4 by British actor Chiwetel Ejiofor on 1 December.

Next year the show, founded in 1984 to promote discussion of new developments in contemporary British art, will be staged at Glasgow's Tramway venue.

Chiwetel Ejiofor, best known for his acclaimed leading role in Twelve Years a Slave said: "I am delighted and honoured to be presenting this year's Turner Prize. For 30 years this prestigious award has represented, in its winners and nominees alike, extraordinary artistic endeavour that has delighted, challenged and inspired fellow artists and lovers of art across the globe."

The Turner Prize award is £40,000 with £25,000 going to the winner and £5,000 each for the other shortlisted artists.

Richards shows Rosebud 2013, which features filmed censored photographs from a Tokyo library books. As well as scenes of puddles, a bird, and the contours of a fingertip, his black-and-white footage also features "a head of elderflowers trailed lightly over lips, skin and genitals."

His footage is described as "poetic meditations on the pleasure, sensuality and the voyeurism that is in the act of looking."

His film, which has prompted the gallery to warn visitors about the adult nature of some content, uses a "range of emotional tone" to elicit an emotional response from the viewer, according to curator Lizzie Carey-Thomas.

Richards' second work, The Screens 2013, features projected images from a theatrical make-up manual, and Untitled Merchandise (Lovers and Dealers) 2007.

Tris Vonna-Michell shows Postscript II (Berlin) 2014, a slide installation based on a story about his mother's childhood in post-war Germany. Vonna-Michell also shows his first film installation, Finding Chopin: Dans l'Essex 2014 which revolves around French sound poet Henri Chopin (1922-2008).

Ciara Phillips presents a new installation, Things Shared 2014. It shows colourful handmade screenprints pasted straight onto the gallery walls from floor to ceiling. A giant 3D 'OK' is also in the room.

Duncan Campbell shows It for Others 2013 which responds to a 1953 film essay about historical African art and colonialism, Statues Also Die by Chris Marker and Alan Resnais.

Diverse archive footage and new material includes a new dance work by the choreographer Michael Clark. Campbell also shows Sigmar 2008 inspired by his interest in but scant personal knowledge of German artist Sigmar Polke.