What type of charter in invitations by carol Shields?

In "Invitations" by Carol Shields, the type of charter evident in the text is a reflective and introspective exploration of personal relationships and the complexities of human emotions. The narrative delves into themes of connection, communication, and the nuances of everyday interactions, often highlighting the subtleties that shape our experiences and perceptions. Shields uses invitations as a metaphor for the ways individuals reach out to one another, both literally and figuratively, suggesting deeper meanings behind social gestures.