Complex sentence: Marlow narrates several of Conrad's best-known works such as the novels "Lord Jim" and "Chance", as well as the framed narrative in "Heart of Darkness", and his short story "Youth".
Split into simpler sentences: Marlow narrates several of Conrad's best-known works. The character Marlow narrates Conrad's novels "Lord Jim" and "Chance", as well as the framed narrative in "Heart of Darkness", and his short story "Youth".