I've got Justin Pate's Newer set of 3, his older DVD's released by Real Wraps, A vid from Mac Tac, Avery, R Tape, 3M, Oracal, Fellers, & one called Wrap Tutor (old). Most Vinyl Manufacturers will send you one free of charge. None go into as much depth as the Justin Pate ones in my opinion.
But to be honest...no matter how many you watch, you don't really become a professional wrapper until you get your hands on a LOT of different vehicles & curves, mess up a lot of vinyl, reprint & relaminate ( or worse, order re-prints) do shoddy work for customers, take many hours even days on the same vehicle and get frustrated beyond belief to the point that you decide you HATE wrapping and can't quit because you need the money. Then, one day, you realize you look forward to wrapping. You actually enjoy it and you aren't really intimidated by it. In fact...like many of my brothers and sisters in this industry, you can't even look at a car anymore...without planning out the wrap installation in your head...and even telling yourself..."man, I'd love to get my hands on that (year/make/model)" Before you know...you'll find yourself looking down on other noobz like yourself and even getting angry at the sight of their posts saying..."I just bought a printer and probably getting a laminator...how much should I charge for a van?" You know what...this is turning into a wrappers memoirs, I need to stop. Good Luck