Step by Step for sending emails

Can someone help me with how to send out and email to a certain group of people. I see the list builder I see how to make the document but where do you go from there?

@susan Once you have created a list in List Builder and created an email document to send, you can send it by going to Contacts > Send Mass Email > Select the Email Document you want to send > In the “Send To” field, click on the dropdown and select the List you would like to send this email document to. Hope this helps!