I found the book Boomerang by Michael Lewis quite interesting (
http://www.amazon.co.uk/Boomerang-Me.../dp/1846144841)
It has a chapter on various European countries and their story of how they found themeselves in trouble. The chapter on Greece is interesting and shows why there needs to be reforms. Essentially no one in Greece was paying any taxes and they were borrowing more and more money, in part, thanks to Goldman Sachs.