"This concise handbook presents a summary of Earth's history over the past 4.5 billion years" - part of the opening sentence, and the book backs it up with descriptions, charts, graphs, maps and pictures. Each geologic period is treated separately with its own stratigraphic chart showing era, period and age (in Ma.) and related fossils. Each section also has a map showing continental distribution for that period. Where uncertainty exists this is discussed in the text. This is not an in depth book but it manages to cover a lot in less than 200pp. I am delighted with this book and recommend it to anyone interested in earth history.
Easy to read with plenty of references. Great reference and a starting point for your geo-exploration. Neatly published, so it is pleasure to use this book over and over again and you get the guaranteed information on time ;-), much faster than in any search engine.