Spec work

Don't do spec work or ask a graphic designer to do spec work. Here's a great article about why:

http://www.davidairey.com/spec-work-in-graphic-design/

learning and remembering

We learn:
1.0% through taste
1.5% through touch
3.5% through smell
11% through hearing
83% through sight

People generally remember:
10% of what they read
20% of what they hear
30% of what they see
50% of what they see & hear
70% of what they say as they talk
90% of what they say as they do a thing!