Andrew Manson is the central character in A.J. Cronin's novel, The Citadel.

Key aspects of Andrew Manson include:

• A Young Doctor: He is a newly qualified and idealistic doctor.
• Career Trajectory: The novel follows his career, from his first practice in a Welsh mining village to his eventual success (and moral dilemmas) in London.
• Themes Explored: Manson's experiences serve as a vehicle to explore themes of medical ethics, social inequalities, and the challenges faced by doctors in balancing idealism with the demands of the profession and society.

To learn more about the themes and context of the novel, I recommend further reading and analysis, which can be found through various literary resources.