Is there a unique book store near the Biltmore?

Yes, it's called " The last book store". Wonderful place.

There were two or that i am aware of. Caravan book store & The Last Bookstore

Yes. There is the last book store. There is also another one closer. It is on olive, just down the street, before the starbucks.

I did walk by one.

There are 2 local bookstores walking south on Grand Avenue; Los Angeles public library across the street

I don't recall seeing one but I wasn't looking for a unique book store either...