World Book Encyclopedia and Year Books Red/Gold Edition

I've got a small stack of vintage World Book Encyclopedia volumes and Year Books from the late 80s. They're the classic red hardcover with gold lettering. Included are the 1987, 1988, and 1990 Year Books, the 1989 Science Year, and a couple of encyclopedia volumes (U-V and the Index). They've been sitting on a shelf, so they're in decent shape for their age. Just looking to clear some space.