Note: SF sub label of ハヤカワ文庫 (Hayakawa Bunko) label 文庫 (bunko) is a Japanese mass-market paperback format (usually A6 with slip cover) Started in August 1970 as ハヤカワSF文庫 (Hayakawa SF Bunko) but evolved into ハヤカワ文庫SF (Hayakawa Bunko SF).