Stephen (Boston University, USA) Kalberg 
The Social Thought of Max Weber [PDF ebook] 

Stephen Kalberg’s The Social Thought of Max Weber, the newest volume of the SAGE Social Thinkers series, provides a concise introduction to the work, life, and influence of Max Weber, considered to be one of three most important founders (along with Marx and Durkheim) of sociology. The book serves as an excellent introduction to the full range of Weber’s major themes, and explores in detail the extent to which they are relevant today.  It is ideal for use as a self-contained volume or in conjunction with other sociological theory textbooks.