The Art of Monitoring
First off, I'd like to say that I think this is great and we need more books in this space.I hope this can be seen as constructive criticism but I do have a few comments on the layout and content.1. Free chapter - perhaps chapter one or two may have been a better choice. I'd like to know the philosophy behind monitoring expressed in the book before diving into the details.2. capacity planning - A chapter on this would have been great. Most teams I've worked with have struggled with sizing, planning resources required and archiving strategies with their monitoring solutions.3. Monitoring strategies for different levels in the stack - where do I start, what should my short term goals be and so on.4. naming of some of the chapters  are too focused on the technology- for example the chapter on logstash could have been renamed to something to do with application logging or log scrapping.5. visualisation and communication of results - there could have been a chapter on dashboard and reporting. This is a common issue with teams trying to understand how to do this.This was written in a bit of a hurry but I hope my points came through.