Getting Started: Get Iconic!
LOGO.com gives you the option to stylize your brand with an optional icon:
The Logo Design Engine uses Keywords to help find you a suitable icon, although you will be able to change it up at any time. When choosing keywords, try to keep them directly related to your business, grounded in real-world objects rather than abstract concepts.
You can use up to 3 keywords, although you don't need to add all 3 - in fact, you may get better results by only using 1 or 2.
Next: Review your options!