The fourth edition of OpenStack Cookbook is out. I’m delighted to be allowed to read it in advance, I was actually one of the reviewers of the book, I hope I was helpful for the project. I did my best to cope with the timetable, reviewing is not just reading you need to focus on the whole chapter, remember what was already presented to the reader, act as a reader and try what is on. I must admit I did not test all the recipes for some chapter I just rely on my experience. At the end, this was a good new experience. Now I just need to wait for my free copy and read it again to find out if we did a good job or not.