A comprehensive online resource which explains how to make theatres more accessible to all. Includes information on marketing for audio description and captioning. The resource also covers presenting assisted (captioned, audio-described and BSL) performances, tips on concessionary pricing, the legal implications of the Equality Act, and ways of thinking about disability. There is also information on technical set-ups for accessible theatre performances.
VocalEyes, StageText and Culture Hive explore this is more detail in the above link.