The novelist Amor Towles, whose best-selling books include “Rules of Civility,” “A Gentleman in Moscow” and “The Lincoln Highway,” contributed an essay to the Book Review recently in which he discussed the evolving role the cadaver has played in detective fiction and what it says about the genre’s writers and readers.Towles visits the podcast this week to chat with the host Gilbert Cruz about that essay, as well as his path to becoming a novelist after an early career in finance.Also on this week’s episode, Sarah Lyall, a writer at large for The Times, interviews the actor Richard E. Grant about his new memoir, “A Pocketful of Happiness,” and about his abiding love for the book “Alice’s Adventures in Wonderland.”We would love to hear your thoughts about this episode, and about the Book Review’s podcast in general. You can send them to books@nytimes.com.