The document discusses the importance of attachment in early childhood, highlighting that a secure attachment with a primary caregiver is crucial for emotional and social development. It outlines the types and characteristics of attachment, including secure, avoidant, anxious-ambivalent, and disorganized attachment styles, and their implications on children's behavior and relationships. Additionally, it emphasizes the role of keyworkers in fostering these attachments in nursery settings through attentive and nurturing interactions.