"Brings together critical historical documents, many of which are translated into English for the first time, in Japanese arts from the end of World War II through the next four and a half decades."
Suggested terms to look for include - diary, diaries, letters, papers, documents, documentary or correspondence.
Combine these these terms with the event or person you are researching. (example: civil war diary)
Also search by subject for specific people and events, then scan the titles for those keywords or others such as memoirs, autobiography, report, or personal narratives.