You need to type a letter or flyer and don't want to pay for a subscription to Microsoft Office, Google Drive and Docs might be the perfect solution.
Sign in with your Google Account, click the Google apps "waffle" then look for Drive and/or Docs:
Click Drive to open, then click New to see Drive options:
From here we'll focus on the basic tools for getting started with Google Docs
and Docs toolbars and menus: