[jrpt]

Quantum physics is a separate (but related) branch from particle physics so using the slash "quantum/particle" is mixing up two different things - which one do you really want?

Theoretical Concepts in Physics by Malcolm Longair is a mix of history and physics, by explaining how physicists came to discover their theories. I actually don't think it says much about modern particle physics though. It includes quantum mechanics.

Introduction to Elementary Particles by David Griffiths if you just want particle physics. Griffiths also has an intro book on quantum mechanics.

[beefield]

I'd be interested in all observations that make "non-classical" thinking of physics necessary. I have no deep enough knowledge to distinguish quantum physics and particle physics. So for example what is the experiment that makes us think that particles have something called spin? And what experiment makes us think that the spin can only have distinct values? And so forth.

Anyway, the books you proposed look interesting, thanks.