This was tweeted awhile ago from @The_Pigeon, the Twitter feed of childlit's most famous bird since that one in Are You My Mother?
Mo Willems discusses the end of the Knuffle Bunny trilogy with his daughter Trixie, on whom the Trixie in the books is loosely based. Everyone together: awww.
P.S. That kid is astonishingly self-possessed. Don't you think? I don't know how old she is, but whatever her age, she's very articulate.