  We present a brief overview of the most relevant current issues related to
quarkonium production in high energy proton-proton and proton-nucleus
collisions along with some perspectives. After reviewing recent experimental
and theoretical results on quarkonium production in pp and pA collisions, we
discuss the emerging field of polarisation studies. Thereafter, we report on
issues related to heavy-quark production, both in pp and pA collisions,
complemented by AA collisions. To put the work in a broader perspective, we
emphasize the need for new observables to investigate quarkonium production
mechanisms and reiterate the qualities that make quarkonia a unique tool for
many investigations in particle and nuclear physics.
