If you are moving from another computer, you can import your address book.
You can do this even if the address book was created using different
software. You should always test any files before you get rid of the old
address book (and do not be surprised if you lose some parts of the
information).
To match this, there is an export facility. You can select any of the
files and save them on another disk as a backup or to take to another computer.
You will normally find the import and export under the File option.
Groups
You can set up groups inside the address book. Select new, then group
and
give it a name. Then select the names by double-clicking to add them, or type in a
new email address.
Next time you want to send some news to the family, you can select the group
title just as if it was the email address. You can go back and edit the group
to add or remove names.