Home › Authors › Joanna Cannan Joanna Cannan b. 1896 โ d. 1961 ยท 9 books Biography Joanna Maxwell Cannan (27 May 1896 โ 22 April 1961) was an English writer of pony books and detective novels, the former aimed mainly at children. She belonged to a family of prolific writers. Books by Joanna Cannan Murder Included 2017 They Rang up the Police 2017 Pony for Jean Pony for Jean 2014 Elle nous empoisonne 1986 I Wrote a Pony Book Kgt I Wrote a Pony Book Kgt 1976 Another Pony for Jean Kgt Another Pony for Jean Kgt 1973 Three Great Pony Stories 1971 And Be a Villain 1948 They Bought Her a Pony 1945