Additionally , some Star Trek publications , including officially licensed ones , posit additional ranks that are not seen or mentioned in live - action productions .
For example , the second and third editions of The Star Trek Encyclopedia offer differing insignia for various Starfleet ranks .
Some Star Trek publications , including officially licensed ones , posit additional ranks that are not seen or mentioned in live - action productions .
For example , the second and third editions of The Star Trek Encyclopedia offer differing insignia for various Starfleet ranks .