I nominate Ken Wilford and his website to be the 21st century version:
http://www.vanagain.com/articles/  Lots of good info here as well as
excellent videos.

Lacks the old school character of a well-worn grease stained book, but far
more useful (as long as you have cell service or Wi-Fi)!  The Vanagon is far
more complicated that the old Beetles of Muir's day and we need resources to
match.

Thanks Ken!

Stuart