When I was a kid in the 80's, I was interested in electronics... it was Mims books and Radio Shack that made my interest bloom from a mere hobby to eventually a profession. I'm not genius, but because of Forrest Mims books and Radio Shack, I was doing a lot more than "building" a clock. Thank you Forrest, your books resonated with me a a young age. I was able to understand the content and experiment with some really interesting projects, learning a lot along the way. Arduino is the new electronics breadboard, but I am grateful I understand analog electronics as a result of my education from his books. Digital is 'simple' in comparison.