Images and Text Do Not Mix
This PowerPoint [[xref:http://www.slideshare.net/anilkr123/car-and-technology|presentation on cars|Car and Technology]] (we know it’s about cars because an introductory slide consists of the word "CARS" in huge, garish orange-and-blue letters) puts all of its images in the background (after applying a little tasteful fading), with [[xref:http://www.pcworld.com/article/7774/make_a_bold_statement_with_text_in_powerpoint.html|paragraphs of text|Make a Bold Statement With Text in PowerPoint]] overlaid on them. This accomplishes the difficult feat of making the images hard to look at and
the text hard to read. Perfect-a lose-lose situation!
The presenter could have consolidated the text in one part of the image, using the image’s horizontal guiding lines; but that didn’t happen, so the slide manages to look sloppy as well as unreadable. Bonus points for misspelling “carburetor.”