In a wide-ranging conversation, Malin Thor Tureby interviews Henry ‘Hank’ Greenspan aboutseveral of his projects involving ‘sharing authority’, what Greenspan calls ‘collaboration’. Collaboration has taken many forms in his work, most centrally his practice of interviewing the same Holocaust survivors multiple times over months, years, and with some survivors, decades. Unlike conventional testimony, which concerns declaration, that is, ‘this I witnessed’, Greenspan’s approach emphasises exploration, what one survivor called ‘learning together’. Thus, in the context of deepening conversations,survivors reflected on the impact of their wartime experiences throughout the years that followed; theirvarying choices about what to share and not share at different times and circumstances; and theirperceptions of their listeners, and popular ‘Holocaust memory’, in general. Greenspan also discusses a memoir he co-authored with a survivor, and a play, REMNANTS, which is based on his decades of conversations with survivors. He reflects on the process of co-authorship, the role of personal chemistryin interviews, the claims of the verbatim, writing in the service of conversation and the relationshipsbetween artistic and scholarly ways of knowing.