This edition of That Hideous Strength by C.S. Lewis was published in 1965 and is the third and final volume in Lewis' space trilogy (following Out of the Silent Planet and Perelandra, also known as Voyage to Venus).
It is in okay condition, showing some scuffing on the covers and notable creasing on the spine. There is also a pen inscription on the inside and very faint water damage on the first few pages, but the rest of the inside is in excellent condition.