Final answer:
Rob Hall's personality is described as charismatic and compassionate.
Step-by-step explanation:
According to Jon Krakauer's book 'Into Thin Air,' he describes Rob Hall's personality as charismatic and compassionate. Hall was the leader of one of the expeditions to Mount Everest and was well-liked by his clients and peers. He demonstrated strong leadership skills and showed deep concern for the well-being of his team members.