Great 1960s Sci Fi "Ace Double" featuring two Harlan Ellison novels in ONE book. These Ace double books are highly collectable and featured many established and up and coming writers of the day.

From Wikipedia:
Alfred Elton van Vogt was a Canadian-born science fiction author. His fragmented, bizarre narrative style influenced later science fiction writers, notably Philip K. Dick. He is one of the most popular and influential practitioners of science fiction in the mid-twentieth century, the genre's so-called Golden Age, and one of the most complex.

Murray Leinster was no hack either, this was one of many pen names for the prolific William Fitzgerald Jenkins, an American writer of science fiction and alternate history literature. He wrote and published more than 1, 500 short stories and articles, 14 movie scripts, and hundreds of radio scripts and television plays.

The double is in good condition overall, on the Leinster side, some of the first few pages have come loose from the spine. Published in 1955, there are signs of wear and age. The bonus book, The War Against the Rull was published in 1960 and is in good condition over all.

This item is sold from a vintage boutique in Pendleton, South Carolina.