This book was writen originally for a publisher as a short book.
I'm releasing this book for free under a creative commons license. Enjoy. Fork me on github or submit a pull request if you want to make changes.
I'm dedicating this book to the families of the miners that were massacared by the South African government in 2012 at Marikana.
This book was written using ascii doc. If you have ascii doc then you can compile the book with the following command.
$ a2x -f pdf --fop elk-stack-ascii-doc.txt --verbose --no-xmllint