  The Higgs boson, which was discovered at CERN in 2012, stands out as a
remarkable elementary particle with distinct characteristics. Unlike any other
observed particle, it possesses zero spin within the Standard Model (SM) of
particle physics. Theoretical predictions had anticipated the existence of this
scalar boson, postulating its interaction with the $W$ and $Z$ bosons as well
as through Yukawa interactions with fermions. Furthermore the Higgs boson can
interact with itself, commonly referred to as the Higgs self-interaction. In
this review, the current state of experimental and theoretical investigations
of Higgs boson production at the LHC and the ongoing efforts to unravel its
properties are described, and an up-to-date assessment of our understanding of
the Higgs sector of the SM is provided. In addition, potential links between
the Higgs boson and significant unresolved questions within the realm of
particle physics are presented.
