Ask HN:Math Books

I recently finshed reading stroud's and john bird's engineering mathematics.but i want to continue to read as much as math books possible.(not sure what the motive is!!) I'am really curious to know your personal list .Please list a whole bunch of math books that you've read and interested in. it's ok to list right from elementary to the most advanced mathematics under the sun.(also include physics right from elementary to advanced). .