CS Lewis philosophy books

Got a phone call from my ex-boyfriend (from high school) today, as he was going into a Barnes and Noble, and he was buying me some books for a "long overdue Christmas present." We'd been talking about CS Lewis the other day, and he'd offered to let me borrow his copy of Mere Christianity, but I think he decided not to let go of his book indefinitely. (I don't blame him. I feel the same way.)

So I'm pretty sure he's getting me Mere Christianity, and either The Screwtape Letters or Till We Have Faces (retelling of Cupid and Psyche myth).

Maybe I'll sit and have some coffee while I read some day. :)

I think that somewhere in the back of my mind, I'm hoping that reading some philosophy will calm my mind and maybe pull me out of this pit I've fallen into. Besides, CS Lewis has been a comfortable writer for me to learn from before. Maybe I can understand philosophy if HE is talking about it.