Books like Figure Drawing for All It's Worth

This is awesome. Okay, it's from the 50s, includes its share of -isms from the day and some of that overexburance of mine comes from the fact that this is available free of charge online (and what's better for a wanna-be struggling artist?). But the mathematician in me is also just bowled over by the attention to proportion ratios and visual guides for such (is it a freudian slip that I kept accidentally writing the letter k instead of h in the word such?). I am quite sure that there are many other books that will delve into the fine details of ratios and proportions and tell you the magic numbers you need to make you hero look...heroic and everyone else dumpy, fashionable or whatever fits your fancy. However, I stopped looking for a basic art textbook after I found this. My characters may not all need to look like the 50s pin-up women or Arian comic book men, but as long as you have a great foundation, you can go anywhere/draw anything. Afterall, no book is going to teach you to be creative and think outide the box/book.