This text investigates the fundamental mechanisms of how living organisms acquire, process, and utilize information to adapt to their environments. Beatrix and R. Allen Gardner synthesize principles from ethology and experimental psychology to construct a unified framework for understanding learning. By bridging the gap between biological sign stimuli and complex communication systems like sign language, the authors provide a rigorous methodology for analyzing behavioral adaptation across species.

Experts recognize this work as a foundational text that successfully bridges the divide between traditional behavioral psychology and ethology. Students and researchers frequently note the clarity of the authors' definitions and the logical progression of the experimental concepts presented.