Coca and indigenous culture

Since we've started talking about Colombia and the problem of the drug trade I thought I would recommend a book, even though none of you will probably read it. The book is The Hold Life Has: coca and cultural identity in an Andean community by Catherine J. Allen. It's an ethnography about a traditional indigenous community and the centrality that coca has in their culture and cosmovision. I don't think that most people realize that, before being processed into cocaine, coca is no more potent, or harmful, than a cup of coffee.