THE NEW COLLECTION from London Review of Books editor Adam Shatz, jointly published by the LRB and Verso, comprises mostly essays previously published in that magazine. And despite its title—Writers and Missionaries: Essays on the Radical Imagination—it is less the missionary function of writing than the value of that periodical that the book most clearly illuminates. The LRB was founded in 1979 when a lockout at The Times put The Times Literary Supplement on indefinite hiatus. Frank Kermode, who had written for The New York Review of Books since its founding in 1963, published an article in The Observer calling for something to stop the gap: and in due turn, the NYRB launched its London counterpart, with NYRB editor Karl Miller at the helm. But more essential still than Miller was his deputy editor, Mary-Kay Wilmers, who would later serve as the magazine’s editor for almost 30 years. From an immensely wealthy family, Wilmers had a childhood so cosmopolitan that for a long time, she’s said, she was more comfortable in French than in English.