Instruct: Classify the given review into positive or negative sentiment.
Query: Hard to follow

First - somehow I have missed that there is second edition of the book. Of course its my fault, but anyway its not nice to still sell old book with the same price. It just happened that on my search in amazon older version popped up and I bought it - no need to tell I felt bad after I find out about second edition.Anyway after reading the book don't feel that bad :) Maybe this book is just not for me, because it looks like other reviewers liked it, but it was very hard to read and understand. Explanations was not deep enough for me, there is a lot of stuff like "we'll see in the next chapter", code quality does not look good - pretty hard to read and understand. Maybe it would be good for someone with sound theoretical knowledge on the subject, I didn't have that (I'm just software developer that become interested in neural networks). Anyway I didn't like the book - would give it 2 stars, but because its old version that is still sold - I will give it only one star.