This so much but in mechanical engineering. I was struggling in my course when I happened on a book written in 1980s in used book store for $1 It had worked ex

This so much but in mechanical engineering. I was struggling in my course when I happened on a book written in 1980s in used book store for $1 It had worked examples, basic theory from foundation up, and was absent all superfluous info. I credit it to passing my course and getting to where I am today. I still have it in my office to this day.