This book's aim is to obtain and organize knowledge about the diversity of living things. Their epistomological and methodological fundamentals are explained in the framework of the biology of evolution. The methods of construction and use of phylogenetic trees are presented as well as the classification and description of taxa with the nomenclature rules.

Philippe Grandcolas is Senior Research Scientist at the CNRS and Director of the Institute of Systematics, Evolution, Biodiversity, France.

Marie-Christine Maurel is Professor at Sorbonne University and Researcher at the Institute of Systematics, Evolution, Biodiversity, France.