From Archaea into Humans: A step-by-step guide

This is a concise account of how life evolved on Earth from simple beginnings. It focuses on how DNA and RNA were involved from the very start, and follows with an explanation of how a chance event led to the formation of mitochondria and all the resulting complex life, including human beings. A brief introduction to the human genome is also provided and the story concludes with the prospects of there being intelligent alien life elsewhere in the universe.