Question : How do I (can I?) create a multi-value field in Access?

I'm an experienced programmer but an Access neophyte. I'm trying to create a database that keeps track of my entertaining. There will be one record per event. I have a "Name" field for the names of guests, and it is tied to a table lookup. But how can I select multiple guess names from my table?

Answer : How do I (can I?) create a multi-value field in Access?

You're going to need more than one table for a start,

Probably:

tbl_entertainment_event:
EventID   Autonumber PrimaryKey
EventName Text(Name or description)
EventDate   DateTime
.... any other info you wish to add about entertainment events

tbl_guest:
GuestID   Autonumber Primary Key
Firstname Text
Surname  Text
.... any other info you wish to add about guests

Now a relating table:
tbl_event_guest:
EventID  Long Integer (Relate this field to tbl_entertainment_event.EventID via Tools....Relationships)
GuestID  Long Integer (Relate this field to tbl_guest.GuestID via Tools....Relationships)

Now use the form wizard to create a form/subform combination, containing the following fields

tbl_entertainment_event:
EventID
EventName
EventDate
.. any other fields in this table

tbl_event_guest:
GuestID

tbl_guest:
Firstname
Surname
... any other fields in this table.

Hope this helps