I understand how to use an Access query as a data source, but how do I
handle it when my query is going to return an indeterminate number of
results in particular fields? For example, if I'd written a query that
returned the names and addresses of all students in a year and the
courses for which each student was enrolled, how would I do a mail-merge
to send an individual letter to each student confirming the courses?

Would I have to insert fields to accommodate the maximum number of
courses for which a student could possibly be enrolled, and then let
Merge suppress blank lines if a student wasn't carrying a full course
load, or is there a neater way to do it?

I can understand how I could use bookmarks to send such a letter to
particular students whom I'd selected using a form in Access but I'm not
sure how I could get that to work so I could send the letter to all the
students at once.

Or should I be asking this in an Access group?

Steve