Comfort reading

I've just finished the latest Kim Harrison book Black Magic Sanction which is pure escapism. I've read all eight books in the series now. They are definitely comfort reads - they pull me into another world where for a time I can forget about anything that's troubling me. A bit like alcohol but with no side effects and a much quicker recovery rate when real life calls.

Other authors I like for comfort reading are Diane Duane, Tanya Huff, and Terry Pratchett. What are your comfort books? Or do you prefer chocolate? (I like combining the two.)