Manna's work explores the effects of preservation practices in the fields of agriculture, science and law. Manna's 2015 film
A Magical Substance Flows Into Me focuses on
Robert Lachmann's quest to create an
archive of "oriental music" in
Jerusalem. In 2021, her exhibition “Thirty Plumbers in the Belly" was on display at the
Museum van Hedendaagse Kunst Antwerpen.
Foragers'' examines how Israel's declaration that
za'atar and
akkoub are protected species impacted
Palestinians. In 2026, there was controversy around a work she was commissioned by the Norwegian government as part of the rebuilding of the government quarters after the bombing of 2011, where she intended to dedicate the artwork to the Palestinian struggle . == References ==