... if, like me and countless others, you’ve loved Schjeldahl’s art criticism — its acuity, its passion — and considered him (quoting a fan) 'the best art writer of our era … one of the best critics ever' — brace yourself. Also a Poet: Frank O’Hara, My Father, and Me, Calhoun’s brave, blistering new memoir, may force you to — uh — revise your assumptions.