This rather short offering arrived in the post this morning and is suitable for the beginner or even for someone who has an essay to write for school but other than that there just is not enough detail!
The GSG covers just three pages, Ripper Letters are offered just three, suspects have no space other than a couple of lines to say only none "persuasive" suspects have been put forward!
The actual description of the GNU Free Documentation License covers about 20% of the finished book!
Don't waste your money. The text of the book does not appear to be online for free at the address given above, but it's already online at Wikipedia and on several other sites. There is no authorlisted on the book because it's just the Wikipedia article (or the version of the article as it looked when the publisher copied and pasted it off the site), which is written by lots of people. The publisher (who, despite his attempts to remain anonymous, is pretty easy to find -- it's one Joshua Linsk of Minneapolis) just printed up lots of different Wikipedia articles and offered them to sale to people not letting them know that they are all just the Wikipedia articles you can get online for free.