The document discusses various types and formats of invitations and replies. It provides guidelines for drafting formal and informal invitations, acceptance and refusal replies. Key details include:
- Formal invitations can be in card or letter format, while informal ones are in letter format.
- Informal invitations include sender's address, date, salutation, event details and signature.
- Formal card invitations include host's name, invitation phrase, event reason, date/time, venue and RSVP details.
- Replies thank the host, state acceptance or refusal to attend, and include best wishes.