Good theme but I have nothing that fits the bill :-(
Thanks! I've stumped myself too though. Not a single book on my shelf has a sweater on the cover! I honestly thought it would be easier than it is to find one!
Words of Mercury, by Patrick Leigh Fermor
with a picture of the author wearing a sweater on the cover.
And I saved the best for last:
4 - https://www.bookcrossing.com/---/14746325/ Ugly Christmas Sweater Party Book: The Definitive Guide to Getting Your Ugly On
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