Twenty-one years ago in the LRB, Julian Barnes accused J.D. Salinger's erstwhile biographer, Ian Hamilton, of 'reverse reductivism': 'Normally, the biographer establishes the course of a writer’s life and then uses it to "explain" the work,' Barnes wrote. With Salinger’s life largely unavailable, or where available obscure, Hamilton finds himself doing the opposite: deducing the life from the work . . . ‘A Perfect Day for Bananafish’, one of Salinger’s most elusive stories, is discussed in terms of a. Salinger’s visit to a hotel at Daytona Beach; b. the history and genealogy of the Glass family; and c. the stylistic break it represents from ‘The Inverted Forest’, published a month earlier. ‘Bananafish’, Hamilton records in passing, is ‘spare, teasingly mysterious, withheld’.