The Van Gogh Museum’s new exhibition, Van Gogh and the Roulins – Together Again at Last, celebrates an important family reunion. It brings together 14 portraits of the wife and three children of the postman Joseph Roulin – Vincent van Gogh’s closest friend and supporter while he was based in the southern French town of Arles.

The exhibition is a work of art in itself: tightly focused, beautifully designed and accompanied by an excellent catalogue. Additional works and props (such as Roulin’s chair) contextualise the show, but it is the portraits of the Roulins – Joseph, Augustine, 17-year-old Armand, 11-year-old Camille and baby Marcelle – that take centre stage.

Hung in three rooms on contrasting deep blue and orange walls they demonstrate the new direction that Van Gogh’s work was taking during a crucial period of his artistic development.

As a group they represent, on one level, the artist’s personal longing for the stability of a wife and family and, on another, his radical rethinking of portraiture as a genre. They were painted at a time when, in correspondence with his two friends, Paul Gauguin and Emile Bernard, he was struggling with the idea of art as “abstraction”. That is, as a fusion of the real and the imaginary.

Van Gogh wanted to paint ordinary people as he “felt” them and to raise them to the level of the universal. He was interested in........

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