I could not even begin to tell you how bad!

The remaining chapters are factual but not at all humorous nor entertaining. If you watch The Big Bang Theory, Sheldon clones wrote the reminding 90%.

This revised version contains all of the illustrations from the book, in high resolution and in color. It's a very fascinating book, a really great read, and worth every penny. It's a big download as books go, due to those graphics, so give it some time to download!

I just downloaded a sample, which contains illustrations, so it appears that both problems the other reviewers mention are now fixed.

How cone there is no preview for the book?

Do not buy this book. Despite a description that says the book is "gorgeously illustrated with photos, documents, and treasures of the Royal Society" the iBook version has NONE of these. Apple support responded promptly and provided a new download version but it also was lacking any illustrations. The text of the book even refers to illustrations but none are present. Really annoying. They now have refunded my money but have no explanation for the problem.