So You Want to be a Theatre Director? (2004) by Stephen Unwin, ISBN 1-85459-779-5[4] Persistence of Vision: An Impractical Guide to Producing a Feature Film for Under $30,000 (1995), by John Gaspard, Dale Newton, Gaspard Newton, ISBN 0-941188-23-X[5] Friendly Enemies: Maximizing the Director-actor Relationship (2003), by Delia Salvi, ISBN 0-8230-7944-9[6]