  Jet substructure observables have been used by experiments at the Large
Hadron Collider (LHC) as instruments to search for new physics as well as to
study perturbative and nonperturbative processes in quantum chromodynamics
(QCD). Some observables are infrared and collinear safe and thus easily
comparable to first-principles calculations, while others offer direct insight
into specific physical phenomena such as the quark-gluon plasma formed in
heavy-ion collisions. The high-precision capability of the ALICE tracking
system allows a unique opportunity at LHC energies to measure tracks with low
transverse momentum, permitting high precision access to the softer components
inside jets with an excellent angular resolution. We present some recent
charged-particle jet substructure measurements in pp collisions with ALICE,
including the generalized jet angularities, the angular jet axes differences,
and the direct observation of the dead-cone effect in QCD using the primary
Lund Plane. These results provide new insights into the evolution of jets by
comparing ALICE measurements to predictions from different event generators and
perturbative QCD calculations.
