|Born||2 June 1928|
|Died||4 January 2008|
Claesson was born on June 2, 1928 in Huddinge, south of Stockholm. He went to the Royal Swedish Academy of Arts between 1947 and 1952, when he began to illustrate Swedish classical books such as those written by Per Anders Fogelström.
Claesson was the father of actor Leif Claesson. Stig died on January 4, 2008 in Stockholm.