You can put that in perspective when I tell you I spent ten years at Chicago, earning both my bachelor's and PhD -- by this I mean I took a lot of economics courses. If you know anything about the Chicago School of Economics you are aware that price theory occupies a special place in their scheme of things.
The good Doctor retired from Chicago around 1973 or 1974, if I am not mistaken (he moved to the Hoover Institution. You can't take "Milton" on price theory today -- but you can read his book. And it what a fine book it is. I recommend reading George Stigler's "The Theory of Price" before attemption this book. Master them both and you will have a very solid foothold on price theory.