Over the past few months I have been preparing to take the JNCIE-ENT lab exam.  As part of my studies I adopted the plan of “Teaching What I Am Studying.”
The culmination of all the study, over 500 pages of text,  will be for sale  via Leanpub shortly. The reason I have chosen Leanpub is because I will be able to publish updates and people who have purchased the workbook will be able to get those updates free.  With my past workbooks, once they have been published – they are final.  Using Leanpub, I will be able to keep them updated with new technology and information when necessary.
Below is a link where you can sign-up to be notified when the workbook is published.