A very, very good collection of essays. Essential readings? Yes - though scarce on foreign policy which stops me handing it five stars. Woolych's excellent essay on how Cromwell was not in the slighest a military dictator, and Blair Worden's essay on Cromwell's religion - focusing in particular on providence - is also illuminating. It dispels a few myths about Cromwell, and includes the whole range of authorities on Cromwell - Worden, Gaunt, Morrill, Smith, Woolych. Can't go wrong. Very good.