Over at the main Powell's location, it's Molly Wizenberg of the popular blog Orangette, one of those pretty yet down-to-earth lifestyle blogs full of accessible recipes, pictures of cute children, and introspective, relatable anecdotes. She's just like you, but better! And she's signing copies of her new memoir Delancey: A Man, a Woman, a Restaurant, a Marriage, about opening a pizza joint in Ballard that's by all accounts very good. She's also at Jim Dixon's Real Good Food olive oil emporium this afternoon from 3-4 pm. Powell's City of Books, 7:30 pm

And then at the Hawthorne store, Nathan Deuel discusses his memoir Friday Was the Bomb, which describes the five years he spent living in the Middle East and raising a daughter with his wife, NPR foreign correspondent Kelly McEvers. I caught part of an interview with Deuel on NPR the other day; he talked about how parenting norms are so different in parts of the Middle East that when people saw him running errands with his baby daughter, they assumed his wife must be dead. Deuel's in conversation tonight with the IPRC's Justin Hocking; I think it'll be a good one. Powell's on Hawthorne, 7 pm