I think that I have an answer for every mood.
I like to read the writing of people who care about words and ideas.
Two of my favorite books are "A Tale of Two Cities" and "Wuthering Heights." I have read the former more times than I can count. I love the way Dickens sets everything up in the first chapter and then weaves all of those bits of subtle foreshadowing into the rest of the story. I love his well-rounded characters and the fact that seem to discover something new every time I read it.
The latter is more of a mood piece. Brote takes her time to set a mood and then to devlop it, with a bit of goodebumps, mystery and surprise thrown in.
T.S. Eliot's poetry is rich with imagery and diction. He uses words in such a way that they have levels and facets of meaning that shine and twinkle or wink shyly from shadows.
I also like the Harry Potter books, especially the first, so filled with whimsy and delight. Rowlings has a gift for finding --or creating-- the perfect word.