Raven Girl is a dark and fantastical novel by Audrey Niffenegger that tells the story of a young girl who is half-human and half-raven. She struggles to find her true identity between the conflicting desires of her human and avian selves.
The book title "Raven Girl" has old English lettering that resembles the Aeronaut font designed by Georg Herold Wildfellner. This is a commercial font and you can buy it here.