Via foxmoth, this is a brilliant meme but also a challenging one! With a certain degree of "oh well, I guess that one does fit..."

Lust, books I want to read for their cover:
- Taylor Jenkins Reid, Atmosphere (OK I have read it but I would have picked it up just for the cover, UK edn)
- Andrew Porter, The Imagined Life
- Benjamin Wood, Seascraper

Pride, challenging books I've finished:
- Uwe Johnson, Anniversaries
- Laszlo Krasnahorkai, War and War
- JRR Tolkien, Hobbitinn (The Hobbit in Icelandic)

Gluttony, books I've read more than once:
- Alaistair Reynolds, Redemption Ark
- Sergei and Marina Dyachenko, Vita Nostra
- Jon Krakauer, Into Thin Air (I like reading this on airplanes, God help me)

Sloth, books on my to-read list the longest:
- David Bentley Hart, The Beauty of the Infinite
- Milorad Pavić, Dictionary of the Khazars
- Gabriel García Márquez, One Hundred Years of Solitude

Greed, books I own multiple editions of:
- Mary Renault, Return to Night
- (...plus various books in multiple languages but I think that's the only one with multiple editions in English)

Wrath, books I despised:
- RF Huang, Babel
- Don DeLillo, Underworld (I want so much to like this but I don't)
- Fyodor Dostoevsky, Crime and Punishment

Envy, books I want to live in:
- My own