This resource highlights the wonder of infants’ and toddlers’ development, learning, and loving capabilities. The authors describe how very young children eagerly engage with teachers and the environment to gain a sense of self and self-worth; of belonging, relating to others in healthy ways; communicate easily and effectively; act on their ideas; problem-solve; and move successfully. The book describes how teachers support both development and learning with relationship-based interactions and program planning as well as provide young children the protection, affection, and emotional connections they need to thrive. Throughout, the authors address the teacher’s critical role in reflecting, observing, and facilitating learning; working with families; and creating supportive environments and responsive learning opportunities.