I'm a signmaker by profession mostly self taught, I started off in the motor trade as a sprayer at bus repair garage where I was an apprentice.
If you are interested in this black art, my references
http://www.allmetalshaping.com
http://www.metalmeet.com
http://www.metalshapingzone.com, this chap is a coachbuilder who did his dvd on basic metalshaping, his DVD is a must for anybody interested in restoration techniques, he also has vids on youtube https://youtu.be/IGElSHzm0q8
This was a good place to start on a damaged MGB wing that got kicked about, the blue dye it engineers blue that helps highlight the lows in the panel














