This three-volume work investigates the comprehensive mechanisms by which humans and other organisms perceive depth across all sensory modalities. Authors Brian J. Rogers and Ian P. Howard, both distinguished experts in vision research, synthesize decades of psychophysical data and biological analysis to construct a unified framework for understanding spatial perception. The text serves as an exhaustive reference, moving beyond traditional visual studies to incorporate auditory, somatosensory, and electrosensory data into a cohesive model of three-dimensional environmental awareness.

Experts in the field of vision science recognize this set as a foundational and highly detailed resource for researchers and advanced students. Readers frequently note the academic density of the prose, which is designed for professional use rather than casual inquiry.