Good Omens by Neil Gaiman and Terry Pratchett
Pure fucking genius and far funnier than anything has any right to be, a satiric tale about an angel, a demon, the four horsebikemen of the apocalypse, the Antichrist and the end of the world. How could anyone not love this?
In fact pretty much anything with Gaiman's name on it would be a good answer.
"God does not play dice with the universe; He plays an ineffable game of His own devising, which might be compared, from the perspective of any of the other players [i.e. everybody], to being involved in an obscure and complex version of poker in a pitch-dark room, with blank cards, for infinite stakes, with a Dealer who won't tell you the rules, and who smiles all the time."
Day 01 - Best book you read last year
Day 02 - A book that you’ve read more than 3 times
Day 03 - Your favourite series
Day 04 - Your favourite book of your favourite series
Day 05 - A book that makes you happy
Day 06 - A book that makes you sad
Day 07 - Most underrated book
Day 08 - Most overrated book
Day 09 - A book you thought you wouldn’t like but ended up loving
Day 10 - Favourite classic book
Day 11 - A book you hated
Day 12 - A book you used to love but don't anymore
Day 13 - Your favourite writer
Day 14 - Favourite book of your favourite writer
Day 15 - Favourite male character
Day 16 - Favourite female character
Day 17 - Favourite quote from your favourite book
Day 18 - A book that disappointed you
Day 19 - Favourite book turned into a movie
Day 20 - Favourite romance book
Day 21 - Favourite book from your childhood
Day 22 - Favourite book you own
Day 23 - A book you wanted to read for a long time but still haven't
Day 24 - A book that you wish more people would’ve read
Day 25 - A character who you can relate to the most
Day 26 - A book that changed your opinion about something
Day 27 - The most surprising plot twist or ending
Day 28 - Favourite title
Day 29 - A book everyone hated but you liked
Day 30 - Your favourite book of all time