Alright, so my task was to find 3 books; one with snow on the cover, a tree, and a weapon. This was really difficult, seeing as I have so many hard cover books, of which I have thrown out the book jacket! But I (kinda) managed!
Tree: Invaded by Melissa Landers. Okay, so its not really a tree, but its a small little branchy tree in the bottom right corner. Still counts, right?
Snow: The Iron Knight by Julie Kagawa. The whole theme is snowy, and there small little snowflakes decorating the boarder.
Weapon: City of Glass by Cassandra Clare. Look at that beautiful demon hunting sword on his back. Lovely.