Hogan has developed a pioneering approach to portraiture, working alongside an oral historian from National Life Stories, an independent oral history charity based at the British Library. This leaves her free to observe the figure engaged in conversation. During the recording sessions she witnesses the telling of in-depth autobiographical narratives. She observes the connection between spoken testimony and the changing appearance of the narrator, nuances of delivery, alterations in energy, mood, and gesture. Sessions last for two to four hours over a period of many months, sometimes years. Hogan established a research group About Face at the University of the Arts London and co-directed it with professor Charlotte Hodes.

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