OK, didn't take me long I've got:-
Enduring Love by Ian McEwan, I bought it secondhand, it has been read a few times but is clean and in reasonable condition.
The Tesseract by Alex Garland, bought secondhand too, read a few times but in clean and reasonable condition.
Lucky by Alice Sebold (am reading this at the moment so will need a few days to finish it), secondhand as well, edges of the pages slightly yellowed but it feels like I am the first person to actually read it, clean and good condition.