Siteimprove offers several different ways to learn about website issues that impact the accessibility and content quality of your website, how to remediate those issues and why accessibility is so important.
Siteimprove training courses are self-led and available to all Siteimprove users.
Siteimprove Frontier training (login required):
Accessibility Fundamentals for the web
1 hour course, from the Learning Path: Accessibility for Content Contributors path
Accessibility as a Priority in Your Organization
1 hour course
Siteimprove Help Center
On-Demand Webinar: Accessibility 101
40-minute course
Webinar: Assistive Technology: Demonstration of a Screenreader
50-minute course