Natasha's Dance: A Cultural History of Russia (Allen Lane) by Orlando Figes
Devil that Danced on the Water: A Daughter’s Memoir (HarperCollins) by Aminatta Forna
Dr Tatiana's Sex Advice to All Creation: The Definitive Guide to the Evolutionary Biology of Sex (Chatto & Windus) by Olivia Judson
Samuel Pepys: The Unequalled Self (Viking Penguin) by Claire Tomalin
Nelson: Love and Fame (Yale University Press) by Edgar Vincent
Submissions for the 2015 prize are now open until 24 June 2015.