This is a collection of six vintage Analog Science Fiction Digest magazines from July to December 1961. The magazines contain works of popular science fiction writers such as Frederik Pohl and C.M. Kornbluth, Clifford D. Simak, Christopher Anvil, Mack Reynold, Harry Harrison, and Gordon Dickson. The issues are illustrated and published by Street and Smith Publications. The magazines are in English and have a publication frequency of monthly. The set includes issues V67 #5, 6 and V68 #1,2,3, and 4. The magazines cover various genres from science fiction to fantasy and fiction.