You set up an account when you purchase our materials. Go to the Student Login link (top right menu tab on any page) and access your courses. (Once logged in, you will see that the link changes to My Account, which gives you access to your account info, courses purchased, etc.)
Your materials are available 24/7 as long as you have Internet access. If you later forget your password, there is a reset password function from the Student Login/My Account link.