As an interested amateur, I recommend the book "Something Deeply Hidden: Quantum Worlds and the Emergence of Spacetime" by Sean Carroll as a good overview of quantum fundamentals. The book discusses several interpretations of the reality of matter at the quantum level. Dr. Carroll himself believes that everything is waves/fields at the lowest level, and a many-worlds interpretation of why matter appears to be particles when we observe it, but also discusses de Broglie–Bohm pilot wave theory and spontaneous collapse theory.
Actually, the cmd/ctl-z advice is actually moderately useful. If you type it immediately after the closing formatting character it undoes the wysiwyg formatting. (I'm not arguing against a way to turn the wysiwyg input window off, however.)
These books were created from Feynman's lectures to freshman and sophomore Caltech students. I have not looked at the books in detail, but I think that a dedicated reader who is comfortable with calculus should be able to understand them.