Goldratt's "Theory of Constraints" bears some real gems, like diving deeper into the Socratic approach and the Evaporating Clouds method, or by elaborating a bit more on the psychology of change per se. Nevertheless, I did not overly enjoy the read, which is both due to the unstructured presentation and the TOC sales show covering nearly the second half of this edition. I heavily doubt this book would've been of any use for me at all if I hadn't read The Goal beforehand, as I always had the feeling I'm just dealing with some secondary literature to it. This was a rather strange experience.