Unlike your local store
art supplies, Copic is
actually a brand which
is widely popular
among the artist
community as it is
professional due to it’s
properties.
They have a wide range of colour selection and are
classified into four main types: Original, Ciao, Sketch and
Wide. They also have an air brush system. You may watch
this video if you want a more detailed explanation for the
markers:
https://www.youtube.com/watch?v=xgMhTvuSLNo