I was asked to compile and produce a report for a research project to be published, with instructions to make it "look professional", something like this report here.
I was too stupid to learn how to use PageMaker, Illustrator or FreeHand properly in a short time, so I jumped at LaTeX as my tool. Well after all, the glossaries (or acronym) package kept the acronyms and abbreviations consistent, and biblatex (a new, experimental package that offers much more flexible citation and bibliography features) meant easy inclusion of list of publications anywhere in the report and without having to manually format the entries. The tikz package provides drawing capabilities which I used liberally all over the page designs. Heck, even adding a barcode for the ISBN was effortless with ean13isbn.
I reckon a few eyebrows were raised, and indeed the printing company expressed surprise when told that our PDF was prepared with LaTeX ("You mean LaTeX can produce colour stuff?")
Without going into too much details on all the packages I used, here are some excerpt pages from the final product, designed and typeset by yours truly. While I'm certainly not a graphics designer by any means, and really professional layout designs is much more easily achievable with other applications mentioned earlier (if you know how to use them properly), I'm pretty happy with the end result. But never, ever let it be said that LaTeX is capable of producing drab, boring, black-and-white scholarly articles only again!