I don't understand, So What is the difference?
The Difference Between Copyright and Trademark
While both offer intellectual property protection, they protect different types of assets. Copyright is geared toward literary and artistic works, such as books and videos. A trademark protects items that help define a company brand, such as its logo.
I could remake the wheel, but Holly Pixels sums it up great here in her blog post: Go Check it out! I am not an affliate, just concerned for my business and yours.
Remember, Just because everyone else is doing it...doesn't make it right!