Modern biological classification is based on the system developed by Linnaeus & interpreted by Darwin as representing the tree of life But despite its widespread acceptance the evolutionary interpretation has some problems & limitations This comprehensive book provides a single resource for understanding all the main philosophical issues & controversies about biological classification It surveys the history of biological classification from Aristotle to contemporary phylogenetics & shows how modern biological classification has developed & changed over time Readers will also be able to see how biological classification is in part a consequence of human psychology language development & culture The book will be valuable for student readers & others interested in a range of topics in philosophy & biology