Gilles Deleuze (left) and Félix Guattari (right) in France, 1980 © Getty Images; courtesy Marc Gantier and Getty Images.

CAST’s informal monthly reading group, led by Tom Greenall, will return on 10 October. The next sessions will explore Felix Guattari’s The Three Ecologies – an ideal introduction to the work of one of Europe’s most radical thinkers, extending the definition of ecology to encompass social relations and human subjectivity as well as environmental concerns. If you would like to join the sessions, which will take place on Monday evenings once a month, please email [email protected].uk to register your interest.