The Microsft Outlook address book can keep all your contacts organized. To add or delete a new contact...
Open Outlook. On the LEFT side towards the bottom is Listed MAIL, Calendar, Contacts, and Tasks.

Click on the Contacts tab.
Any contacts currently listed in your address book will appear.
To add a new contact, click on NEW. This button is located directly under the FILE button in the top LEFT. This box appear.

Fill out the contact information and click "Save & Close". The screen will then revert back to the main contacts page.
To DELETE a contact, from the main contacts screen. RIGHT Click on the desired contact, and select DELETE from the drop down box.