By clicking the Train yourself option in the training widget, you'll be shown the available training lessons. These lessons are as follows:
- Roadmap
- Get started
- Setup
- Mobile
- Communicate
- Store and share
- Manage
- Support
You can also access this page directly at https://support.office.com/en-us/article/Office-365-small-business-–-training-6ab4bbcd-79cf-4000-a0bd-d42ce4d12816?ui=en-US&rs=en-US&ad=US.