I'm joined for this episode by Jon Stewart, guitarist in Britpop band Sleeper and Course Leader for the BA (Hons) Music Business at BIMM Institute, Brighton.

Jon's book is a dual biography of John Lennon and Bob Dylan, and discusses their relationship; their politics; their understanding of history; and their deeply held spiritual beliefs. In revealing how each artist challenged the restrictive social norms of their day, the author shows how his subjects asked profound moral questions about what it means to be human and how we should live.