Not books but journal articles

The Journal Economica is making available the Coase and Phillips lectures for free online, as well as the original classic Coase and Phillips articles which inspired the lecture series. Well worth accessing for those interested. They are:

The second Phillips lecture by Thomas Sargent took place in February 2010 at the LSE. A podcast and video of the lecture is available here.

The second Coase lecture by Jean Tirole took place in February 2009. A podcast of the lecture is here.
The article is:
Individual and Corporate Social Responsibility

The first Phillips lecture by Robert Lucas took place in February 2008.
And the article is:
Ideas and Growth

The inaugural Coase lecture by Oliver Hart took place in February 2007.
His article is: Reference Points and the Theory of the Firm     
      
 
The original Coase and Phillips articles are:

The Nature of the Firm
R. H. Coase

The Relation Between Unemployment and the Rate of Change of Money Wage Rates in the United Kingdom, 1861–1957
A. W. Phillips