Turning Forms (BH 166) is a concrete sculpture by Barbara Hepworth, one of her first public commissions, made in 1950 for the Festival of Britain.
Like most sculptures for the Festival of Britain, Contrapuntal Forms was commissioned by the Arts Council, but unusually Turning Forms was commissioned and paid for directly by the Festival board, at the instigation of the architect Jane Drew, to complement her design for the Thameside Restaurant.
The armature was fabricated in Plymouth and coated with a lightweight core of vermiculite then finished with layers of concrete added and shaped by Hepworth at her studio in St Ives.
The sculpture was exhibited outside the Thameside Restaurant at the Festival of Britain in 1951, near Waterloo Bridge, mounted a motorised plinth that slowly completed a rotation in two minutes.
It was removed temporarily for conservation in October 2000, and then exhibited at the Hepworth Wakefield from May to November 2021 alongside Contrapuntal Forms for the first time since 1951, before returning to the school.