Favourite poems from the world's poets
27 June 2012 Last updated at 10:17 BST
The "biggest gathering of world poets" is under way at London's Southbank Centre.
Above the gathering of poets, 100,000 bookmark-shaped poems were dropped from a helicopter on Tuesday.
BBC News went along to find out favourite poems from some of the world's poets.
Video produced by Rachel Curtis. Rain of Poems footage courtesy of Chilean arts collective Casagrande