John Launer's 2015 biography of Spielrein (in English, and written with the support of the Spielrein family) is based on close readings of her hospital notes, diaries and correspondence. It calls into question many of the received accounts about Spielrein. He challenges the presumption that Jung psychoanalyzed Spielrien in any systematic way, reciprocated her feelings for long, saw her as his 'anima', or regarded her as a more significant figure than his other female partners of the time. Instead, Launer sees her historical importance as someone who made an early attempt to harmonize psychoanalysis and developmental psychology within an overarching biological framework, anticipating modern ideas from attachment theory and evolutionary psychology.