Freedom of expression and sexual liberation might have defined the 1960s but by 1971 the British education system was far from ready for Dr Cole's explicit series A New Approach to Sex Education. Made as a teaching aid for use in schools an universities, the Growing Up was unprecedented in its depictions of erect penises, un-simulated masturbation and intercourse to describe the development of the human body and sexuality to students.

• Institute for Sex Education and Research
• Martin Cole