In Biopiracy, the Plunder of Nature and Knowledge, Vandana Shiva starts from the very reasonable premise that life forms, used for nutritional and medicinal purposes by native cultures for centuries, should not be patented by foreign multinational corporations as "new discoveries". In other words, this book is not for anyone who feels that it is okay to patent life forms which are modifications of already existing species. If you are interested in the problems with this approach and its political, economic, and moral implications, this book is necessary reading. Shiva exposes this exploitation of the intellectual and material wealth of the third world in the name of profits. Shiva's Monocultures of the Mind is also strongly recommended.