The Harry Potter books are always the ultimate comfort for me. And sometimes a sugary Sarah Dessen novel. Or any teen lit novel that's written well.

I usually head for the L.M. Montgomery or one of my favorite Tamora Pierce titles.

I usually go for a childhood favorite like L.M. Montgomery or Frances Hodgson Burnett.

Either The Hobbit, most of Terry Pratchett's Discworld books (especially the Watch and Witches storylines) or Tamora Pierce's Tortall books (especially Protector of the Small).

I posted my list here: http://akikotree.livejournal.com/45617.html

Following what seems to be a pattern, it contains both "The Hobbit" and Tamora Pierce :)

Carol Christ's book on her trip to Crete.
It's about women finding the Goddess.
It"s about finding one's self, connecting with others, seeing beauty.
It reminds me of who I am, where I've been and what I want to be.

I Capture The Castle or any of the Harry Potter books.

Mercedes Lackey's Arrows of the Queen series

Harry Potter. Almost anything Diana Wynne Jones that I can find in the house. Occasionally, Megan Whalen Turner. And L.M. Montgomery's Anne of Green Gables, because it reminds me of guileless childhood.