
This is a celebration of an unashamedly broad range of contemporary art in Wales. Highlights include a great big sculptural chunk of a yew tree by David Nash, Katie Allen's wistful acrylic fantasies (pictured), and false beards fashioned by Bermingham and Robinson from museum dust. At Oriel Mostyn, until 16 October 2010
Photograph: Oriel Mostyn

With a full house of starry artists (Louise Bourgeois, René Magritte, Rachel Whiteread and Rem Koolhaas), not to mention wunderkammer appeal, this exhibition has all the building blocks of a surefire summer hit. At Barbican art gallery, from 10 June until 12 September 2010
Photograph: Barbican art gallery

In two works specially created for this exhibition, cube sculptures inspired by those of Robert Morris and Sol LeWitt are burned or dusted with purifying salt. At Plymouth arts centre until 25 July 2010
Photograph: Jeremy Millar/Plymouth arts centre

Emerging from Munich academy of arts in the mid-90s, Melissa Logan, Kiki Moorse and Alex Murray-Leslie have gone on to eradicate the boundaries between fine art and trashy entertainment, punk performance and electroclash pop. At Dundee Contemporary Arts until 8 August 2010
Photograph: Dundee Contemporary Arts

While Tate Liverpool is currently showing his anti-war paintings, the Gagosian gallery has gone for more intimate works. The core of the show is Picasso's Picassos, paintings loaned by the artist's relatives, which were created in the south of France between 1945 and 1962, when he was surrounded by friends like Jean Cocteau, lovers and family. At the Gagosian gallery, until 28 August 2010
Photograph: Gagosian gallery

There's not much to see in Florian Hecker's exhibition, an increasingly complex intermix of subtle sound sculptures. Instead there are haunting vocal abstractions and sounds that revolve together both clockwise and counterclockwise. At Ikon Eastside, until 20 June 2010
Photograph: Ikon Eastside

This selection of graphic novels ranges from Frans Masereel's 1925 woodcut story of German expressionist fear and loathing, Die Stadt, through to Eric Drooker's graphic account of apocalyptic alienation in New York City, The Flood. On show at The Collection until 30 August 2010
Photograph: The Collection

Curated with the help of the Viz team, Harry Hill and Guardian cartoonist Steve Bell, this show demonstrates that our comic tradition is ingrained well beyond the realms of fnar-fnarring. At Tate Britain from 9 June until 5 September 2010
Photograph: Tate Britain