The site was not that bad a few years ago, but I guess this new structure sells better for some companies. At the time, I actually bought the book and I liked

The site was not that bad a few years ago, but I guess this new structure sells better for some companies. At the time, I actually bought the book and I liked it. It was a bit dense in the beginning, and I skipped the example, but I had some good takeaways, specially on the implementation of the system, which is described in the book.