Yayoi Kusama - Tate Modern, London

One of the joy's of going to the Tate Modern is to watch middle class parents dragging their children round desparately trying to get the nippers into it, 'oh isn't this one colourful'. Another joy is to see the madness on display, the pure insane in the membrane inventiveness that sometimes you get with abstract art. It's easy to look at a picture of a thing, a portrait by an old master say and think 'very nice' but then what? you move on to the next one and so on without really thinking about it. Abstract art demands more, its a bit more difficult and some things can be very, shall we say, 'challenging' but if you make a connection it keeps dragging you back for another look.

Anyway I digress, as I was saying often the joy is to see the madness and inventiveness on display and this exhibition has both in abundance; not surprising for the former, and possibly the latter, as the Japenese artist has lived in a mental institution since 1977. She experienced hallucinations as a child which she describes in her striking paintings and installations of polka dots; dots everywhere, in the living room, on cats and horses and rivers, in a mirrored 'infinity room', the woman is positively dotty. Not surprising perhaps, she was also forced by her mother to spy on her father's infidelities at a young age, which has seemingly also left her with a fascination with phallic images and voyerism.

In New York in the 1960's she organised happenings where hippies found themselves by painting each other with polka dots (what else) and she also offered to sleep with Richard Nixon if he would pull out (as it were) of Vietnam. Unfortunately Tricky Dickie didn't take her up on her kind offer but full marks for trying.

An exhuberant exhibition full of variety and invention that should be seen if at all possible ...oh and don't she look like Jo Brand?