As Bill and Ted discovered in their excellent adventure, it can be easier to learn through hijinks, trials and practice than through reading. How can we learn from their experience to get better at web accessibility? Accessibility is essential to build into our work, but it has a high barrier to entry and is notoriously difficult to learn. Reading guides and specifications can only get you so far. Through my experience training my team in accessibility, I've discovered that learning accessibility testing is the easiest and most effective way of mastering accessibility. In this talk — and with the guidance of Bill and Ted — we'll explore the different ways of learning accessibility, and why focusing on accessibility testing works so well. You'll gain a method of benchmarking your work and progress, and find yourself building up accessibility experience that will last your career.