Revision 274
From now on, each time a full update of the book is published in all formats the output files (XML,PDF,HTML,EPUB and MOBI) will be placed under Git releases and tagged with a release number. This will vastly reduce the amount of Git history (and disk space) that the output files have been taking up while in the /book folder.
You will continue to be able to see the very latest updates by browsing the Gremlin-Graph-Guide.adoc file that can still be found in the /book folder.
This release (274, Dec 24th 2017) contains several updates. A significant amount has been added to Section 3 and in particular the "Starting to walk the graph section" has received a substantial update.
I am extremely grateful for the feedback via issue and pull request that I have been receiving and the encouragement to keep going!