I'm a firm believer in presentation. Content is key, but presentation gets the message across.
My first job as a graduate was clean sheet design of gas turbines - those ground based cousins to aircraft engines. And when I say "Clean Sheet" I mean start from scratch and fill the gap in the computer model with the most imaginative, elegantly designed component possible. What a great thing for a Graduate to do. Before I could do anything, though I had to learn 3D Computer Aided Design (CAD) using Unigraphics software.
My employer provided the training and during the course I filled the gaps by learning how to use the rendering software that quietly sits for most on a little-used menu in one corner of the screen. This was a revelation. Apply materials and virtual lighting to your plastic looking computer generated creations and suddenly they look real. Need to show off internal detail? Easy, apply glass or perspex as a material on one side and suddenly you see through the picture. By the end of the few day's training one wag asked if I was going to be transferred to a "Colouring-in Department".
But what was the point? The company in question had a special approach to concept design review. They had access to several retired gentlemen that had been building knowledge on gas turbines since gas turbines came to be. The only problem was, hold a design review about putting a nose on a snowman and these gentlemen would spend an hour discussing if the man should be snow in the first place. I learnt fast: present simple clear information, say as little as possible and as much as necessary and make your work LOOK like you know what you're doing.
How do I know the pretty pictures made a difference? The next couple of engineers that followed me through the review spent 10 minutes discussing why their images made the turbine blades look wooden and not made of metal.