In 1818 Michael Faraday and a handful of other London artisans formed a self-help group with the aim of teaching themselves to write like gentlemen. For a year and a half the essay-circle met regularly to read aloud and criticize one another's writings. The 'Mental Exercises' they produced are a record of the life, literary tastes, and social and political ideas of dissenting artisans in Regency London. This complete corpus of the essay-circle's writings is accompanied by detailed annotations, extracts from key sources, and a full-length introduction explaining the biographical, historical and literary context of the group.