The document is about Unit 3B of an English language learning course which focuses on appearances. It covers vocabulary for describing people, pronunciation of words containing "-eigh", "-aigh" and "-igh" sounds, grammar around deduction using modals like "must", "may", "might" and "can't". There are also reading and listening exercises where students read about and listen to a radio interview of a man talking about how his appearance and job are perceived differently in different countries.