This diary brings together quotations and reflections by some of the most inspiring and important of radical thinkers throughout the course of history. While Christian thinkers predominate here, the diary includes readings by those who are not in the Christian tradition but whose ideas in one way or another have influenced or have had an important bearing on theology or on Christian life and witness. Also included are twelve short essays on the important subjects of the early church; early Christian radicalism; Christian socialism; trades unions' spirituality; liberation theology; black theology; feminist theology; black women's theology; body theology; green theology; Jubilee; and truth and reconciliation. A comprehensive directory is appended at the end of the book of notable radical organizations, with addresses, contact numbers and websites included.