&copy; Licensed to London News Pictures. 20/07/2018. LONDON, UK. A staff member views &quot;FLOOR 2015&quot;, a large scale kaleidoscopic work, by Jenny Holzer at the preview of ARTIST ROOMS: Jenny Holzer at Tate Modern. The annual free display includes text-based installations and paintings by the American artist Jenny Holzer and runs 23 July to summer 2019.  Photo credit: Stephen Chung/LNP