Collecting things that are preserved by (isometric) isomorphisms between normed spaces

Here are two answers to exactly the same questions asked earlier:

Isomorphisms between Normed Spaces

Why isometric isomorphic between Banach spaces means we can identify them?

If you are highly interested in isometries between Banach spaces, then I also recommend The isometric theory of classical Banach spaces. H. E. Lacey. It contains more advanced parts of Banach space theory.