I.J. Gentles 
The English Revolution and the Wars in the Three Kingdoms, 1638-1652 [EPUB ebook] 

Ian Gentles provides a riveting, in-depth analysis of the battles and sieges, as well as the political and religious struggles that underpinned them. Based on extensive archival and secondary research he undertakes the first sustained attempt to arrive at global estimates of the human and economic cost of the wars. The many actors in the drama are appraised with subtlety. Charles I, while partly the author of his own misfortune, is shown to have been at moments an inspirational leader.
The English Revolution and the Wars in the Three Kingdoms is a sophisticated, comprehensive, exciting account of the sixteen years that were the hinge of British and Irish history. It encompasses politics and war, personalities and ideas, embedding them all in a coherent and absorbing narrative.