Helen Holmes (2020). Missing for 25 Years, a Stolen Robert Spencer Painting Was Recovered by the LAPD. Observer. 4 September.
Helen Holmes (2020). Banksy Denies Instructing Alleged Art Thief to Steal His Work. Observer. 10 March.
Helen Holmes (2020). Banksy Theft Solved? Two Arrested in Paris for Pompidou Center Heist. Observer. 6 February.
Helen Holmes (2019). Christie's Worked With the FBI to Return Art Looted by Nazis. Observer. 2 August.