For more than 40 years, Sally Mann has made experimental and haunting photographs that explore the overarching themes of existence: memory, desire, death, the bonds of family, and nature’s indifference to human endeavor. In 2004, she completed a series of enigmatic portraits of her children, who were by then young adults. Titled Faces and made at close range with exposure times of up to three minutes, these large-scale, softly focused pictures unnervingly recall 19th-century postmortem photographs. Ethereal and indistinct, receding and dissolving, these larger-than-life faces express Mann’s long-standing fascination with the fragility of physical being.