From William Deresiewicz's review of The Pregnant Widow, by Martin Amis:
In his study of Nabokov, Michael Wood makes the useful heuristic distinction between style and what he calls “signature.” Signature announces the author’s presence. Style, Wood says, “is something more secretive... a reflection of luck or grace, or of a moment when signature overcomes or forgets itself.” With style, “we think about the writing before we think about who wrote it.” Well, Amis’s style, in his most characteristic works, as glorious as it often is, is all signature, is always signature. Signature is the whole point of it.