Right now I would consider myself an intermediate guitarist and play in many style. I would like to eventually get that good on bass guitar. So could anyone recommend me a good Bass Guitar method books that would get to a decent level on bass guitar
just play your bass. get a music theory book if you don't have one, but there isn't a written guide that i know of that's gonna help you play bass as well as trial and error, your ear, and lots of practice

you can fret notes, you can see videos of bass players plucking their fingers and the sounds they make. now run wild
modes are a social construct
What style of bass playing are you interested in? Understanding what bass lines you are interested in creating and learning will help find a method book.

Check out this article on my website to get an idea about the types of bass lines you hear in songs
Visit my music school site for advice on gear, music theory and lessons.