NPR's Juana Summers talks with Dylan Mulvaney, author of Paper Doll: Notes from a Late Bloomer, about the highs and lows of the early days of her transition and the joy she tries to share.

SUMMERS: So Dylan took to TikTok to post her lighthearted take on the way she was figuring out what it meant to live as a girl. (SOUNDBITE OF TIKTOK VIDEO) MULVANEY: Day 1 of being a girl ...