A British-born Sikh with a taste for religious history and heavy metal, it's hard to know if he's serious or taking us for a ride. The Inconsistency of Everything is at New Art Exchange, Nottingham, until 3 July 2010
Photograph: New Art Exchange, Nottingham
The first major retrospective of more than 200 images by the Prussian-born, London-based photographer, A World Observed 1940–2010 is at Manchester Art Gallery until 30 August 2010
Photograph: Manchester Art Gallery
Known for her depictions of uneasy adolescence, Dijkstra presents two new videos based on watching children sketch Picasso's painting, The Weeping Woman. On show at Tate Liverpool from 27 April to 30 August 2010
Photograph: Tate Liverpool
This show by the leader of arte povera, his first in a London public gallery since 1982, features a vast new work made with coal, metal and glass bottles. At Ambika, P3, in London until 30 May 2010
Photograph: Michael Maziere/Ambika, P3
Entitled Me, Myself And I, this odd pairing at Arnolfini in Bristol makes for a provocative show, raising key questions about selfhood and our relation to the world. On show until 4 July 2010
Photograph: Arnolfini, Bristol
The artist pays homage to Luigi Pirandello's play Six Characters In Search of an Author at Castlefield Gallery, Manchester, until 6 June 2010
Photograph: Castlefield Gallery, Manchester
Full of precious curiosities, this walk-through show is less a guide to all things sartorial than a take on clothing as a gateway to the mind. At Blythe House, London, from 22 April to 27 June 2010
Photograph: Julian Abrams/Blythe House, London
From Johnny Depp to Fats Domino, the New York artist's sculptures spark a dizzying associations of ideas. Conquest of the Useless is at Whitechapel Gallery, London, from 30 April to 20 June 2010
Photograph: Jason Mandella/Whitechapel Gallery