This is almost the perfect science book. OK, so it is clearly about Biology because it is about the discovery of the structure of DNA. But a lot of what goes on looks like Chemistry to me. And there is a lot of Physics involved. In fact, Watson and his fellow researcher, Francis Crick, worked in the Cambridge Physics labs. Crick WAS a Physicist. The main tool for looking at molecules in those days was called X-ray diffraction - making X-rays spread out and interfere through the gaps between molecules and then working out what it meant. Sir Lawrence Bragg, who ran the laboratory, had won the Nobel Prize for Physics. He has a Wigton connection - his father, the Nobel Prize for Physics winner William Bragg, was born in Westward, 5 miles from here.
The book is fast paced and easy to read. It is really more about the process of scientific research and the personalities involved. I read it in a week. It is brilliant.