This chapter traces the source of Blake’s Illuminated Books to his deceased brother Robert’s notebook. All his life, William used this notebook as a kind of Platonic Receptacle of creation. If the Pauline “Spiritual Body” (SE; E 30) constituted, for Blake, the trace of reciprocal personhood visible in and through another, in this case Robert, then their shared notebook offered William a Lacanian mirror dialectic by which to know himself as a body capable of expanded sense perception. The mirror-like designs and self-reflexive ironies of the Illuminated Books extend the libidinal narcissism of this Lacanian dialectic to the imago of the self-dissatisfied Lockean representational reader—a necessarily self-dissatisfied reader, since why bother to read fiction at all unless out of a felt need to supplement existing representations with actual presence?