No bullshit guide to math and physics
It is probably a great idea, but looking at the sample it looks like just another textbook that is hard and complex:http://cl.ly/image/150V0z3T2b0gIn contrast to that, I found https://openstaxcollege.org/books a really awesome resource for learning physics (on an easy level)Edit: Cutting out all the "bullshit" seems to make it hard for a "busy adult" to easily learn the concept, but it actually seems like a good resource to improve your knowledge which you simply forgot.