Sonia Brownell then commissioned Bernard Crick, a professor of politics at the University of London, to complete a biography and asked Orwell's friends to co-operate. Crick collated a considerable amount of material in his work, which was published in 1980, but his questioning of the factual accuracy of Orwell's first-person writings led to conflict with Brownell, and she tried to suppress the book. Crick concentrated on the facts of Orwell's life rather than his character, and presented primarily a political perspective on Orwell's life and work.