This book titled "Ecological Communities: Conceptual Issues and the Evidence" by Daniel Simberloff is a hardcover textbook published by Princeton University Press in 1984. It weighs 2lbs and has 632 pages. The book belongs to the Princeton Legacy Library series and is an excellent resource for anyone interested in the subject areas of Science, Life Sciences/Ecology, and Environmental Science. The book is written in English and is not a textbook. It is an informative book that provides valuable insights into the concept of ecological communities and the evidence supporting the same.