Books

• Don’t Make Me Think: A Common Sense Approach to Web Usability by Steve Krug
• A Web for Everyone: Designing Accessible User Experiences by Sarah Horton

Courses/Certificates

• WebAim Courses:
  • Accessible Documents
  • Accessibility Training
• W3C: Introduction to Web Accessibility Course

Useful Coding Tips

• Creating Accessible Input Forms in ASP.NET MVC: This page has some information on how to make accessible forms including a key tip about adding aria-required tag to form fields (use aria_required = “true” in Razor page)

Textbooks

• Web Accessibility for Developers