Recent developments in the field of plant systematics, coupled with new and exciting discoveries contributing to the progress in the disciplines that provide information used in classification, have created the need for a second edition of Plant Systematics. The second edition is designed to present the current principles and practices of plant taxonomy and contemporary classifications, and to describe some fo the important families and groups of vascular plants. The aim of this book is to provide a general overview of the field in the most effective and positive manner.