[2] According to Perry Anderson in the London Review of Books, Mousavizadeh was one of Annan's two key advisers in this period, alongside Edward Mortimer.
[3] Mousavizadeh was born to a Danish mother and Iranian father, and grew up in Denmark.
[4] He moved to the United States where he studied at Harvard College and the Massachusetts Institute of Technology, and then moved to the United Kingdom where he was a Rhodes Scholar at Christ Church College, University of Oxford.
[6] Mousavizadeh is the co-author, with Kofi Annan, of the latter's 2012 memoir, Interventions: A Life in War and Peace,[7][8] and is the editor of The Black Book Of Bosnia: The Consequences Of Appeasement which is a collection of commentary pieces published in The New Republic of which he was assistant editor at the time.
[12][2] Since 2019, Mousavizadeh is a member of the Global Board of Directors of the World Resources Institute.