  Central Exclusive Production (CEP) is a unique process at hadron machines in
which particles are produced via colourless propagators. LHCb have measured the
cross-sections for the CEP of vector mesons,
$J/\psi,\psi(2S),\Upsilon(1S),\Upsilon(2S)$ and $\Upsilon(3S)$, which are
photo-produced. In the double pomeron exchange process, preliminary
measurements have been made of $\chi_{c0},\chi_{c1}, \chi_{c2}$ meson
production while the first observations of the CEP of pairs of charmonia,
$J/\psi J/\psi$ and $J/\psi \psi(2S)$, have been made and limits obtained on
the pair production of other charmonia.
