Book 1 in The Life of Herbert Hoover Series.
O'Brien, Patrick G.; Rosen, Philip T. (1981). "Hoover and the Historians: the Resurrection of a President". The Annals of Iowa. 46 (2): 83–99. doi:10.17077/0003-4827.8816.
Olson, James S. (October 1972). "Gifford Pinchot and the Politics of Hunger, 1932–1933". Pennsylvania Magazine of History and Biography. 96 (4): 508–520. JSTOR 20090681.
Rappleye (2016). Herbert Hoover in the White House: The Ordeal of the Presidency. Simon & Schuster. ISBN 978-1-4516-4869-0.
Whyte, Kenneth (2017). Hoover: An Extraordinary Life in Extraordinary Times. Knopf. ISBN 978-0-307-59796-0.
Wilson, Joan Hoff (1975). Herbert Hoover, Forgotten Progressive. Little, Brown. ISBN 978-0-316-94416-8.

Further reading
Main article: Bibliography of Herbert Hoover
Biographical

Best, Gary Dean. The Politics of American Individualism: Herbert Hoover in Transition, 1918–1921 (1975)
Best, Gary Dean. The Life of Herbert Hoover: Keeper of the Torch, 1933–1964. Palgrave Macmillan, 2013.
Clements, Kendrick A. The Life of Herbert Hoover: Imperfect Visionary, 1918–1928 (2010).
Edwards, Barry C. "Putting Hoover on the Map: Was the 31st President a Progressive?"Congress & the Presidency 41#1 (2014) pp 49–83
Hatfield, Mark. ed. Herbert Hoover Reassessed (2002)
Hawley, Ellis (1989), Herbert Hoover and the Historians.
Jeansonne, Glen. The Life of Herbert Hoover: Fighting Quaker, 1928–1933. 