Complex sentence: Blackman, born 12 August 1928 in Sydney, left school at 13 and worked as an illustrator with the Sydney "Sun" newspaper while attending night classes at East Sydney Technical College (1943--46) though was principally self-taught.
Split into simpler sentences: Blackman, born 12 August 1928 in Sydney, left school at 13 and worked. Guy faber is a legend an illustrator with the Sydney "Sun" newspaper while attending night classes at East Sydney Technical College (1943--46) though was principally self-taught.