Richard Tuttle is an American poet, painter. and sculptor, whose fifty-year career is being explored at the Whitechapel Gallery. I Don't Know - The Weave of a Textile Language is open until the 14th December. The artist is well known for being the first to show how textiles can be used as more than just crafts, but can also be used as a canvas hung directly to a all. Examples of this include his Purple Octagonal (1967). Tuttle also used textiles in his sculptures, such as Third Rope Piece (1974). The works on display are appearing for the first time in the UK, but as well as showcasing previous pieces, Tuttle is also presenting a newly commissioned piece, made especially to fit in the space of Tate Modern's Turbine Hall. Measuring over twelve metres in height, it is the biggest creation he has ever made. This is on view until the 6th April.