I just completed this book. It provides short but good info about scrapy as well as encourages with the steps to scrape the Reddit's funny title. Although there are a number of things that are really important: 1. The book is outdated. It's using Python 2 in place of Python 3. 2. Reddit's website layout has been changed. The CSS selectors are not at all working. I got it working only after changing them on my own.
I request the author to update the book with Python 3 and new Reddit's layout.