Rockford gave me a copy of “The Best American Science Fiction and Fantasy 2018” for my birthday because NK Jemisin was the editor and he knows I love her. So far I have had to set the book down and stare into the middle distance at the end of every story. Each of the three I’ve finished has been astonishing and fresh and unexpected, which is exactly what I like about Jemisin’s work. Will they continue to be this good? I hope so.