This chapter functions to formally define and systematize the concept of Acquired Neural Assets within the broader Neural Assets framework, demonstrating how repeated embodied action is transformed into stable, skill-specific neural structures. It establishes that complex cognitive performance, skilled action, and creative emergence are grounded not in abstract calculation alone but in the gradual inscription of sensorimotor experience into Procedural Memory. Through convergent analyses across scientific, artistic, technical, and everyday skilled practices, the chapter identifies a common neurocognitive mechanism: repetition coupled with multisensory feedback produces durable internal models that operate independently of conscious deliberation. These models integrate proprioceptive, vestibular, tactile, auditory, and visual signals through sensorimotor mapping, resulting in specialized neural networks optimized for prediction, coordination, and rapid response. The chapter clarifies how such networks differ from declarative knowledge by emphasizing automaticity, bodily calibration, and resistance to verbalization. It further situates Acquired Neural Assets as experience-dependent extensions of Ancient Neural Assets, formed through neuroplastic reorganization rather than innate endowment. By articulating the transition from deliberate control to embodied automaticity, the chapter provides a mechanistic account of skill stabilization and mastery. Within the overall framework of the book, this chapter establishes Acquired Neural Assets as the necessary substrate upon which higher-order creativity, innovation, and Neural Superassets can later emerge.