From the reviews: "This introduction to complex analysis in several variables uses integral representation theory together with Grauert's bumping method to characterize domains of holomorphy, in other words to solve the Levi problem. ... Each part is provided with a detailed abstract and interesting historical notes. This concise and self-contained book is a welcome enrichment to the existing literature for both graduate students as well as researchers." (F. Haslinger, Monatshefte fur Mathematik, Vol. 165 (1), January, 2012)