Hamad Butt studied at Goldsmiths College at the same time as YBAs (Young British Artists) like Damien Hirst and Gillian Wearing; but whereas they would become household names so their work is now familiar, he disappeared from view. It makes his Whitechapel retrospective feel like a rediscovery – incredibly fresh and immediate.

Donald Rodney’s most moving work is a photograph titled In the House of My Father, 1997 (main picture). Nestling in the palm of his hand is a fragile dwelling whose flimsy walls are held together by pins. This tiny model is made from pieces of the artist’s skin removed during one of the many operations he underwent during his short life; sadly he died the following year, aged only 37.

Brazilian artist Lygia Clark is best known for taking her abstract sculptures off the pedestal and inviting people to interact with them. Dozens of constructions named Bichos (Beasts or Critters) (pictured below right) are hinged along the joins to allow you to rearrange the parts in seemingly endless configurations.

Peter Kennard: Archive of Dissent at the Whitechapel Gallery includes many of the artists’s most iconic political photomontages. Beginning in the 1970s, Kennard created images that by speaking truth to power, gave protest movements like CND (Campaign for Nuclear Disarmament), the Anti-Apartheid Movement and Stop the War Coalition the visual equivalent of marching songs.

It’s been a long time since the Whitechapel Gallery has presented three seriously good exhibitions at the same time. Already reviewed are Gavin Jantjes’ paintings on show in the main gallery. He is now joined, in gallery 2, by Dominique White, winner of the Max Mara Art Prize for Women and in galleries 5, 6 & 7, by Peter Kennard.

The artist Bill Viola died, after a long illness, early in the morning of Friday 12 July. I had the privilege of getting to know him while making a documentary about his life and work in 2001-2003. He quickly became a friend, as did his wife Kira and his sons, Blake and and Andrei. He felt like a kind of brother, who’d grown up through the same changes that shook culture up in the 1960s and 70s. Although he was American, I felt that we spoke the same language.

Born in Cape Town in 1948, Gavin Jantjes grew up under apartheid. He openly criticised the regime in his work and, forced into exile, was granted political asylum in Germany in 1973.

The downstairs of the Whitechapel Gallery has been converted into a ballroom or, rather, a film set of a ballroom. From time to time, a couple glides briefly across the floor, dancing a perfunctory tango. And they are really hamming it up, not for the people watching them – of whom they are apparently oblivious – but for an imaginary camera.

Standing just inside the door of the Whitechapel’s downstairs gallery is a luggage trolley laden with parcels (pictured below, right). This forlorn object looks as if it’s waiting to be collected, but the owner seems to have gone AWOL.The packages are labelled, not with names and addresses but descriptions of the contents, as if they had come from a museum archive.

It’s not often that an exhibition makes me cry, but then it’s not often that a show reveals the degree to which we have been duped. Action Gesture Paint includes the work of some 80 women, half of whom I’d never heard of. Given that I’ve been a critic for over 40 years and consider myself well-informed, that’s pretty mind-boggling.

Where have these artists been hiding? Or, rather, who has been hiding them from us? No marks for guessing it was the male-dominated art establishment.