>>10412554Do you mean you barely meet prerequisites and just want to get your feet wet? Then whatever, something like Griffiths would do, although if you can you should go for a bit more rigorous text like Cohen-Tannoudji or Sakurai.
If you already know QM and want to know more, get an advanced book like "Foundations and Interpretations of Quantum Mechanics" by Auletta that covers things like Gleason's theorem, decoherence, C*-formulation and GNS construction, etc.
