Not of This Earth is the debut studio album by guitarist Joe Satriani, released on December 18, 1986, through Relativity Records.

He also mentions the recording of a follow-up album which he promises "will turn heads, drop jaws and create world peace in our lifetime!

The title track utilizes a unique compositional technique described by Satriani as pitch axis theory, which consists of shifting modes underneath a pedal tone (in this case, E).

[7] Phil Carter at AllMusic gave Not of This Earth four stars out of five, describing it as having "superior compositions, a signature style, a unique tone, and playing that's out of this world."

He praised Satriani's "fluid playing and wicked licks [that] are enough to drop jaws and widen eyes" and that "There isn't a weak track on this disc".