The Book Thief , till now!
Personal Memoirs of Ulysses S. Grant
I also have many favorites and can't list them all. Very few books I've read can I say weren't a favorite. Hard question there.
The Bell Jar - Sylvia Plath
Theology and Sanity by F J Sheed
The Black Company by Glen Cook.
OMG!!! The Lord of the Rings
I have read many of inspiring books and some books of health, it's worth reading them, as they gave us the information of what we could do or we could not do.