#WritersCoffeeClub 7: tale of an unfavorite book cover:
50 years ago as a student at Wesleyan I had read every SF book in the Danbury CT public library except 1. House of Zeor by Jacqueline Lichtenberg had the most godawful hideous cover, and even I who would read anything with print, picked it up many times when I visited the library, shuddered, and set it down again. 
When I finally got past the cover, it was WONDERFUL, and I wrote Jackie, who got me active in SF cons and (paper zine) fandoms.