Design Logo Store
If you're designing a logo for a children's toy store, it's best to use a childish font & color scheme. This would not be quite right for a law firm.
It is also important to state that a logo need not represent what a business sells or offers as a service. that is. A car logo doesn't need to show a car, a computer logo doesn't need to show a computer. The Harley Davidson logo is not a motorcycle, nor is it the Nokia mobile phone logo. A logo purely for identification.
For further proof of this, take the world's top 50 brands – 94% of logos don't represent what the company does.