Complex sentence: Among his short stories, some of the most memorable are those dealing with the lives of Western, mostly British, colonists in the Far East, and are typically concerned with the emotional toll exacted on the colonists by their isolation.
Split into simpler sentences: Among his short stories, some of the most memorable are those dealing with the lives of Western, mostly British, colonists in the Far East. They typically express the emotional toll exacted on the colonists by their isolation.