Contact Settings is where you setup your contact information. This information is used for your contact card, found on the bottom of each of your Spark Pages.
If you used one of Spark's Single Sign On login options, your avatar most probably was automagically imported for you. Otherwise, it is a great idea to add a photo of yourself. This is used on each of your Spark Pages to identify you to your prospect.
First name, Last name, Title, Phone number, Email address
These values are also included in your contact card for each Spark Page. Very important: the email address entered here is the email address used by Spark to communicate with your prospect. If you setup your Spark account with a personal email address, you may want to give consideration to changing this address so that all your correspondence is done with your work email address.
Help your prospects see why your company is the right choice by making your organization's social media easily accessible from each of your Spark Pages. Of course, you can enter your own personal social media account links here if you choose. It's your call.