Osprey Essential Histories is a 24-book series with 24 released primary works first released in 1989 with contributions by Daniel Marston, Carter Malkasian, Nigel Bagnall, Anne Curry, Efraim Karsh, Waldemar Heckel, Philip de Souza, Geoffrey Jukes, Andrew Wiest, Gregory Fremont-Barnes and 6 others.