Address Book keeps all your contacts right at your fingertips

Address Book allows you to enter all sorts of information about a person, including his or her email addresses, phone numbers, addresses, websites, chat names, names of the important people in his or her life (including spouse, partner, mom, dad, siblings, and assistant), and more. And because it's a system-wide application, you can email, chat, or visit a contact's website directly from an Address Book card. You can even print address labels.

If you want to add someone to Address Book, here's how to create a new card.

Enter as much or as little contact information as you wish; if you leave a field blank, it won't appear in the final card