Self-released in 2003,[1] it was the musician's first album to be recorded live without an audience – a trend which would continue for his subsequent studio releases.

[2] The boy depicted in the album's cover is Skylab's nephew, as he would state in a later interview with Jô Soares.

The digital download version comes with the bonus tracks "Câncer no Cu" and "Chico Xavier & Roberto Carlos"; Skylab himself, "in an example of 'self-censorship'",[3] omitted them from the original physical release for considering them too controversial, even for his standards.

[4] A live recording of "Música para Paralítico" appeared on Skylab's 2009 live album Skylab IX under the alternate title "Porrada na Cabeça".

Website La Cumbuca included Skylab IV in 42nd place in its list of the Top 200 Brazilian Albums of the 2000s.