In Outlook 2013: Click on the People icon at the bottom left of the Outlook window.
It's also possible to share a contact group once you've created it. If there is a group of people you email repeatedly with Outlook or Outlook Web App (OWA), you can set up a contact group. If you're using Outlook 2011 on an Apple Mac, please refer to FAQ 2276 instead.
Note: This article applies only to Outlook 20 as used on a Windows PC, or to Outlook Web App (OWA).
2314How to create, use and share contact groups in Outlook or OWA
