I am sort of writing a compendium about integration, everyhting from basic substitutions, to contour integrals, Gamma, beta integrals and so forth.
I feel that no standard frontcase suffices and I therefore think that the best solution for a bookcover would be using tikz (correct?)
I was thinking about tinting the page slightly gray. And making it similar to the headliner here. Some centered text, and then some faded multilayered equations and images

Now, the equations should be a mixture between integrals, and images. Things like










My question is, how would one go about creating such a titlepage? My problem is adding the multilayered equations, in different shades.
(If someone has some arguments or ideas for a better frontpage, I am all ears.)
fill opacity=0.xoption on a node to make it more or less transparent. The other elements you could put in a scope and apply an opacity setting on that. For layers have a look at chapter 82 of the manual. – Roelof Spijker Dec 3 '11 at 16:26\,\mathrm{d}x(or something similar, I've seen sans-serif for instance), notdx:). – Pieter Dec 3 '11 at 17:51