First Novel Gail Honeyman for ELEANOR OLIPHANT IS COMPLETELY FINE  (Pamela Dorman Books/Viking) Biography Rebecca Stott for IN THE DAYS OF RAIN  (Spiegel & Grau) Congratulations to our authors as well as their editors and publishers. View the complete list of Costa Book Awards winners here. All category winners receive £5,000 (about $6,800) and are eligible for the £30,000 (about $40,795) Costa Book of the Year prize, which will be announced on January 30 in London.