Adding and creating address books
You can have multiple address books. For example, you might have one address book for work related contacts and one for private contacts. The sidebar lists those address books, and you can select which address book is shown.
You can also use address books that are not on your computer, such as on the internet (e.g. Google) or in a local network (e.g. LDAP).
New contacts are created in the selected address book in the Contacts window. If no address book is selected, new contacts are created in the default address book.
Collection accounts
Different types of mail, address books, calendars, task and memo lists, belonging to the same user, can be added in one step, by utilizing a Collection account.