+Electron spin is an intrinsic form of [angular momentum](/wiki/angular_momentum) carried by an [electron](/wiki/electron), a fundamental quantum property without a classical analogue. This inherent quality dictates how electrons interact with magnetic fields and underpins the Pauli Exclusion Principle.
+## See also
+- [Quantum Mechanics](/wiki/quantum_mechanics)
+- [Magnetism](/wiki/magnetism)
+- [Pauli Exclusion](/wiki/pauli_exclusion)