The Catalogue tab of your learner dashboard is where you can find training that's been made available for you to self-enrol in (or purchase - in which case the training will show a 'Buy' button linking you to a purchase page).
To access your catalogue, click the 'Catalogue' link on your learner dashboard.
Training is listed in alphabetical order and can be searched using the search box at the top of the page (which may be useful if there's a lot of training in your catalogue).
To learn more about an item in your catalogue, click the box containing the module title. The overview of that training module will slide-out from the right and provide you with summary information about the module.
Enrolling in or purchasing access to a course
Depending on whether training is available to you to enrol in or purchase, there will either be an 'Enrol' or 'Buy' button displayed at the bottom of the overview.
Click Enrol enrol in and begin a module. The module will then open and you can begin the training immediately or return to it at a later time.
Click Buy to be directed to the module's purchase page where you'll be able to find out more about the module and optionally purchase access.