A lot of what we claim to know we learn from other people's testimony: they tell us, and in many ordinary contexts that is enough to gain knowledge. But for many philosophers, aesthetics is different. Such pessimists about aesthetic testimony hold that facts about aesthetic properties – such as Shakespeare's Hamlet being a tragedy, or Picasso's Guernica being anti-war – can't be transmitted by testimony, and can only be learned through first-person experience. 

In Aesthetic Testimony: An Optimistic Approach (Oxford UP, 2022), Jon Robson argues that aesthetic testimony should be treated on a par with testimony in other domains; our deference to others in aesthetic matters is about the same as it is in other areas of knowledge. Robson, who is assistant professor of philosophy at the University of Nottingham, defends a view called contextualist optimism, in which, just as with testimony in other domains, whether we obtain aesthetic knowledge depends on the context in which aesthetic judgments are transmitted.

Carrie Figdor is professor of philosophy at the University of Iowa.

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