Thanks for your input guys, although I've been playing guitar for 20 odd years I had a lot of long gaps with no guitar at all. My biggest regret is not studying more on the structure of chords/music for guitar, key/ scales etc etc...
From what you guys have posted here I can see there probably will be several books that may prove to be "must haves".
From Kirks lessons on this forum, I find his teaching educated precise and very enjoyable so
Plane Talk will be on my book list for sure.
Again thanks for the input.