The term ‘extravert’ occupies a foundational position in the depth-psychology corpus, entering the literature through Jung’s 1921 Psychological Types as one pole of the fundamental attitudinal opposition governing psychic life. Across the corpus, the extravert is defined not merely by sociability but by the structural primacy of the object: external reality, relationship, and collective validation constitute the extravert’s epistemological ground. Jung himself provides the most architectonic treatment, grounding the extraversion-introversion polarity in biology, drawing an analogy to two modes of species survival—fertility and dispersal versus individual self-preservation—and elaborating eight functional subtypes. Subsequent voices complicate and nuance this foundation. Thomson foregrounds the developmental and social dimensions, arguing that all human beings begin extraverting and that extraverts configure self-esteem through consensual, other-oriented reality. Von Franz and the Lectures on Jung’s Typology introduce a paradox of intriguing force: the extravert, when compelled inward, may achieve an unusually pure and naive relationship to the unconscious, uncontaminated by introverted habitual doubt. Sharp and Quenk trace the pathological costs of extraverted one-sidedness—repression of feeling, arterio-sclerosis, susceptibility to neurosis—while the 1925 seminar dramatizes the existential terror solitude can represent for the extreme extravert. Throughout, a persistent tension obtains between the extravert as socially adaptive, normative figure and as one at risk of surrendering depth, interiority, and individuation to the demands of the collective.