I had authored the book on Kibana named Kibana Essentials which is aimed at beginners.
I would love to get your reviews on the book.
Do you have discount codes you could share with the community at all? It's pretty pricey for an ebook 
Hi Mark
Unfortunately I do not have any discount codes which I can share with the community.
First off, thanks for writing a book on Kibana! I hope it helps someone get stated, beyond the use of our Getting Started tutorial.
If you're looking for a review from one of us at Elastic, please feel free to DM me. It's kind of hard to review a book that costs $30 and the preview is fairly limited, but if you have a free code, I would be happy to take a look at least to give you feedback on technical accuracy.