Anything at all

"'What are you reading?'
'A pile of things. Books on stuff, you know how there's always a new one, on tomatoes or love songs or the secret history of buttonholes.' He grinned at her. 'I'm waiting for the book on books on stuff to be published. Perhaps I should write it, I've read enough of them. Ask me anything you want to know about coriander. Anything at all.'"
--Emily Perkins, The New Girl