& Sons is a novel by David Gilbert about a reclusive and famous author, A.N. Dyer, who is reconnecting with his sons while grappling with his legacy and mortality.
The cover of the book "& Sons" features the Christiana BQ Regular font, designed by Gudrun Zapf von Hesse for Berthold in 1991. There are a variety of stroke weights and angled endings in this font. You can find more information about it here.