The product of more than three decades of research and clinical work, this accessible guidebook will help professionals harness the power of Triadic Gaze Intervention (TGI), an evidence-based strategy that supports the development of early communication behaviors--gaze, gestures, and vocalizations--in young children with disabilities. Through a straightforward protocol, practitioners will learn powerful techniques for helping caregivers engage young children during everyday routines and build their preverbal communication skills. A must for early interventionists, speech-language pathologists, occupational therapists, physical therapists, and other practitioners, Building Preverbal Communication & Engagement is the key to helping young children with disabilities learn to successfully communicate, bond with their families, and engage with their world.