This is a set of three books: SF Worlds' Best 1865, 1966, and 1968, published by Hayakawa Publishing. Worlds' Best 1965: Toki no Hazama (Between Time), First Edition, May 31, 1977 Worlds' Best 1966: Boukyaku no Wakusei (Planet of Oblivion), First Edition, April 15, 1978 Worlds' Best 1968: Hawksville Shuuyoujo (Hawksville Detention Center), First Edition with Obi, January 15, 1980 These are used books from over 45 years ago, so there is some staining and discoloration due to age. Please check the images. #SF #SF Bunko (SF Paperback) #Hayakawa Publishing #Short Story Collection #Best Selection #Used Books #Old Books #Showa Era #Hayakawa SF #SF Worlds' Best #Wohlheim & Carr