I am not sure if that is entirely correct. For e.g., see p.no. 14-15 where the diagrams appear at the bottom of the page. But, I agree that usually it is not e

I am not sure if that is entirely correct. For e.g., see p.no. 14-15 where the diagrams appear at the bottom of the page. But, I agree that usually it is not easy to place images where you want in LaTeX.