Ducke with regard to the books, I agree wit Bryan, lots of info on here. HYD puts on a great training class, thoug Dave references Christmas Decor a few times in the training discussions, big $ to get on board with them, but it is my understanding they have the best training and top of the line if not the best LED products.
The book Christmas Designers has was written by one of their staff members whom I have dealt with multiple times - Jason. I was considering it a couple years ago, discussed it with him and he told me I would only get reference use out of it, chances are I wouldn't get anything new. Again I come back to this forum, that is how I started out. Absolute tremendous amount of info on here. I think the biggest thing I would look at is what the time will be for product to get to you.
2007 Ram 2500 with the 6.7
2001 Ram 2500 opec proof gasser with the 360
1996 Mack RD Tri-Axle Dump Truck
2000 Cat 312B
2000 Cat 304 CCR
2000 Hyundai H70
2012 Scag V Ride
2009 Ferris IS3100 z
Brown Bed Edger
Multiple trailers, hand tools and smaller stuff
A son to teach the value of life, business and honor