Patrones de accesibilidad para la Web

En MIND Patterns - Accessibility Patterns for the Web podemos leer:

This book will assist frontend developers in building accessible e-commerce websites and components. It is a living document - so please expect continual edits and updates.
These patterns will assist developers with accessibility, but are not considered to be final, packaged code!
All patterns leave additional steps for the frontend developer to complete. This typically means any CSS styling and JavaScript behaviour not related to accessibility.
Each pattern follows a Progressive Enhancement strategy (where applicable) and aims to conform to WCAG 2.0 Level AA.