It is clear now that his infatuation with the singer — the word is not too strong — has been no passing fancy but constitutes an all-consuming passion. With his new book, Ricks reminds us, on virtually every page, that the word ‘fan’ derives from ‘fanatic.’ All of Ricks’s impressive analytical strengths are on display in Dylan’s Visions of Sin. There is no song, no lyric, no mumbled comment from an interview with Bob Dylan, all cited here with excruciating exactitude, that does not elicit from this most acute of auditors some elaborate and, at times, almost comically inflated gloss. Shakespeare, Milton, Donne, Keats, Larkin, and many others are adduced to shore up his case. While Ricks’s learning and range of reference remain as impressive as always, the very scale of the enterprise overwhelms its subject. It is hard to think of any singer or composer, however brilliant or original, whose work could stand up to the claims Ricks makes for Dylan: Schubert would have quailed with dismay, Noel Coward would for once have been speechless.