On the whole, an engrossing book about rainforests all over the world. In fact, more about Indonesia perhaps than South America. Full of an amazing assortment of facts and figures and statistics on all sorts of things. Rather mind-boggling research must have gone into the writing of this book. Lots of good history of the exploration and exploitation of rainforests. Always, always economics and money are the cause of actions. Rarely just plain common good. Natives always at short end of stick. But she makes a compelling case for preserving what we have just because we don't know exactly all, or even what, there is. We are destroying something we really don't understand. That is dangerous, always. For instance, there is a tree whose sap can fuel a diesel truck!