The wilder shores of contemporary visual art are now ephemeral or time-based: performance, installation, general carry-on and hubbub. But once upon a time – say, the 1960s – it was the nature of objects, pared down to essentials, and often made from real materials sourced from the streets, builders’ yards and shops, that startled: the idea made manifest without old-fashioned notions of the hand-made, craft or manual skill.

Guiseppe Penone’s lyrical and tactile works, made from the simple elemental materials that typify the 1960s Italian Arte Povera movement (of which he is a key exponent), belong largely to the outside world of woods and gardens. But they also find an ideal setting in the serene light-filled spaces of Marian Goodman Gallery, where Penone’s perennial fascination with the relationship between man, nature and art is fruitfully explored in an exhibition entitled Fui, Sarò, Non Sono (I was, I will be, I am not).

Neon was once the triumphant glowing symbol of commerce and capitalism. In the 1930s the distinctive tube lighting gleamed above broadway theatres and on prominent billboards in the world’s great metropolises from New York to Paris. These glory days were not to last. Within just few years neon signs were removed from their downtown pride of place, demoted instead to apologetically jutting out from roadside motels and peripheral dive bars.

“Outside the day may be blue and gold, but the light that creeps down through the thickly-muffled glass of the small iron-barred window beneath which one sits is grey and niggard. It is always twilight in one’s cell, as it is always midnight in one’s heart.” Oscar Wilde’s description of his incarceration in cell C.3.3 at Reading Gaol hits home when you stand inside the mean little room (now number C.2.2) imagining what it was like to spend 23 hours a day locked in this claustrophobic box. 

Just a few hours earlier, as helicopters clattered overhead and thousands joined the good-humoured but impassioned March for Europe, an evening of contemporary art felt like the last thing anyone needed. On this day of all days, launching an art festival inspired by the success of Nuit Blanche in Paris felt like an unnecessary application of salt to the wound.

Pure euphoria! The lady, a mere 87, her stature diminutive, her hair and lipstick a blazing scarlet, is a painter, but also a draughtsman, a sculptor, a creator of environments and installations, a performer, a designer of objects and clothing (affordable too at UniQlo) an illustrator, a writer, a poet, and an all-round polymath. Kusama has lived by choice for nearly 40 years in a psychiatric hospital in her native Japan, working indefatigably.

Cornelia Parker invited over 60 fellow artists to join her in exhibiting at the Foundling Museum in London. Titled Found, the show spills out from the basement gallery to infiltrate every room in the building and remind us that, when the Foundling Hospital was set up as a charity for destitute children in 1739, artists made an important contribution. 

Arts festivals the size of the Venice Biennale are inevitably patchy. The appointed directors are hardly ever given enough time to curate and fill absolutely vast volumes of space. They can exhort the many national and individual participants to follow their lead, and yet they have no editorial control over them. And so for this year’s architecture biennale, with its theme of social responsibility – Reporting from the Front – set by director Alejandro Aravena, consider the newly-built Australian pavilion. This proudly features a swimming pool.

The second exhibition staged by Damien Hirst in his stunning Newport Street Gallery is of work from his collection by the American artist, Jeff Koons. Hirst was still a student at Goldsmiths when, in 1987, Charles Saatchi showed Koons and other young Americans at his gallery in St John’s Wood. Hirst was blown away by the freshness and ambition of work that took Warhol’s love affair with consumer culture one stage further. This mini-retrospective can be seen, then, as a tribute both to Saatchi and Koons – inspirational figures in the 1980s. 

Visceral and vividly colouristic, Clare Woods' paintings are at once abstract and figurative, perpetuating traditional genres but simultaneously occupying a less easily defined area of artistic practice. She puts innocuous or ambiguous subject matter into tension with titles and forms that suggest dark undertones, while big, universal themes are treated with the immediacy of personal experience. Her work is notable for its luscious paintwork and yet she is not a painterly painter, her initial training as a sculptor continuing to inform and shape her work.