Triyoga Chelsea, on the other hand, is a beautiful, clean and airy space opened by lawyer-turned-yogi Jonathan Sattin.

BBC: Yoga turns up the heat in London

Mr Sattin constantly picks up the ironies and contradictions in the motives of the association's members.

ECONOMIST: African exploration

Though most were anti-slavery, the explorers, or missionaries as Mr Sattin calls them, were often forced to co-operate with slave traders.

ECONOMIST: African exploration

Gloria Sattin, who was at the show representing Harley Street-based semi-permanent make-up specialist Debra Robson Lawrence, said her stall too was going down well.

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