Roger E. Backhouse 
Interpreting Macroeconomics [PDF ebook] 
Explorations in the History of Macroeconomic Thought

Interpreting Macroeconomics explores a variety of different approaches to macroeconomic thought. The book considers a number of historiographical and methodological positions, as well as analyzing various important episodes in the development of macroeconomics, before during and after the Keynesian revolution. Roger Backhouse shows that the full richness of these developments can only by brought out by approaches which blend both relativism and absolutism, and historical and rational reconstructions. Examples discussed include Hobson, Keynes and Friedman.