BritainThinks' "Speaking Middle English" study on the 7 in 10 Britons who self-define as "Middle Class" features prominently in a new educational text book from Independence Educational Publishers.

Class and Social Mobility, published this month, is part of a series of books which are used in a wide variety of courses including GCSE, A-level and further education courses.

Click here to see Class and Social Mobility.

Click here to read our "Speaking Middle English" report.