A comic is an story told by a sequential series of images normally with speech bubbles to allow the characters to talk and to further explain the situations depicted. Comics set with in the realm of the Star Trek franchise have been published since the 1960's
In 1995 Marvel returned, publishing comics from all four of the existing series at the time and starting up two series of there own Starfleet Academy and Early Voyages as well as a number of one-shots.
In 2004 Toykopop announced plans to publish a book of TNG manga, that particular project seems to have disappeared in the etha but they still have plans for TOS manga in 2006 to celebrate the 40th Anniversary. In addition to that in 2006 rumours started to surface that IDW may be in the process of acquiring a licence to publish star trek comics.
For comics by series see: