Title: Theory yes, data kind of
Review: As previous reviewers state, this is more about the story of the development of the theory and the interaction among scientists during this development. This book can be appreciated by the layman or scientist. I downgraded the evaluation from 5 to four stars because there is no data other than verbal explanations. Not a graph, chart, table, illustration, or even a photograph. The author visited some of the field sites discused in the book, along with the scientist whose research covered the site, but not even one photo.
Is this product review negative?