Recently I've been asked to help someone out with their undergrad physics, I'm assuming non-calculus to minor calculus based. Since it's fall it's probably classical mechanics, which I'd love to help but they are long distance so I wouldn't be able to spend time with them. Is there any literature out there, ie. Physics for Dummies, that undergrads tend to find pretty useful? I would give him my Halliday Resnick Walker since I think they're the best undergrad first semester physics books in the world but I know plenty of students who had trouble communicating with it. Thanks!