For over 40 years Richard Gott has written high quality material on South America. He is currently working on an analysis of Chavez's Bolivarian revolution in Venezuela. There's a good article in The Guardian today. The chrysalis of the Venezuelan revolution led by Chavez, often attacked and derided as the incoherent vision of an authoritarian leader, has finally emerged as a resplendent butterfly whose image and example will radiate for decades to come.