Guadalcanal Diary is a memoir written by war correspondent Richard Tregaskis and originally published by Random House on January 1, 1943. The book recounts the author's time with the United States Marine Corps on Guadalcanal in the early stages of the pivotal months-long battle there starting in 1942. It was the first book published by Random House to sell more than 100,000 copies. No. 1 on The New York Times Nonfiction best seller list for 7 weeks, from the issue of February 22, 1943. Wiki link