thumb|Kjartan Poskitt in 2014
Kjartan Poskitt (born 15 May 1956 in York) is a British writer and TV presenter who is best known for writing the Murderous Maths children's series of books.
Early life and education
Poskitt was born in York, England, grew up in Selby, Yorkshire and at Bootham School, York, before studying engineering at Collingwood College, Durham University. He participated in the National Student Drama Festival from 1976-1980, and also performed solo at the Edinburgh Fringe Festival from 1979 to 1981. He was a member of the pop group Candlewick Green in the early 1980s.
He has written and directed a number of pantomimes performed by the National Student Theatre Company, including Jack and the Beanstalk (1979), Cinderella (1981), Jack and the Beanstalk (1983), as well as a nativity play, The Road to Bethlehem (1980), and a "musical ghost pantomime", Sammy's Magic Garden (1985).
Early children's television appearances included Swap Shop during its Edinburgh Festival broadcasts, a GCSE Maths support book and four Rosie and Jim annuals. In 2007, Poskitt published the first in a series of children's novels called Urgum the Axeman. Since then he has written the "Borgon the Axeboy" series and the award winning "Agatha Parrot" series.
He also wrote the theme tune for the children's art program SMart, as well as the title theme and music for the first two series of Brum. He is also the creator of a logic puzzle, Kjarposko.