The X Factor by Andre Norton ( Ace Books | 4th. Printing | 1974 )

Overall condition is good. Ace Books printed this novel three times before (1970, 1972, and 1973) and none of them give a printing history and neither does this printing. As such, I am saying this is a fourth printing based on that information. The front cover has minor edge wear, a tiny crease in the upper right corner, and below average shelf wear. The back cover has a small crease in the lower left corner, an even smaller crease in the upper left corner, a faint crease running parallel to the spine, minor edge wear, and below average shelf wear. The spine has no creases and moderate edge wear. Interior pages have some discoloration with age.

Disclaimer: Unless otherwise noted, books being offered are used and are not new. Condition varies. My descriptions will point out specific or obvious flaws unique to the book being offered. Scans of the book’s front and back covers are high resolution. Click on the images to examine the covers up close. If you have questions about the book, ask. I assume that when you make an offer or purchase the book, you have done your due diligence and accept the book’s condition and state.