Three Dimensions Deep is the second studio album by American singer, songwriter, and producer Amber Mark.

The album was preceded by five singles: "Worth It", "Competition", "Foreign Things", "What It Is", and "Softly".

[8] NPR Music described the album as Mark's attempt to work through "feelings of uncertainty" and experiences with loss.

[16] Pitchfork noted that "[m]oving smoothly between R&B, funk, and pop, the fully realized album foregrounds Mark’s vocals and songwriting" while bringing in sci-fi themes and "celestial metaphors".

[9] Rolling Stone was more mixed in its review, saying that the album was "short-circuited by hamfisted writing, especially as the album’s space theme gets less playful and more literal.