What Makes A Successful Logo Design:

1. Educating the clients on what a logo is and how it works.
2. "Market Research" Besides having a relatively simple shape for your logo, it needs to stand apart from the rest of the logos in that market.
3. The logo must be memorable, in order for a logo to be memorable it must be relatively simple. Complex logos are hard to remember because we humans cannot retain too many visual details.
4. Simple logos are very great for making a successful logo design due to the fact that simple logos are very flexible, It can be used black and white, printed on a T-shirt, embroidered on a hat, etc.
5.  Simple logos also inspire imagination. After Japan suffered the devastating Tsunami, graphic designers from around the world were inspired to create symbols and posters to help raise money for Japan.