1. Lettermarks: This type of LOGO design uses initials of company or brand names, such as IBM and CNN.
2. Wordmarks: This type of LOGO design uses the whole word or phrase of the company or brand name, such as Coca-Cola, Google, etc.
3. Pictorial Marks: This type of LOGO design uses a representative graphic or shape to represent a company or brand, such as Twitter's bird logo and Nike's "hook" shape.
4. Abstract Marks: this type of LOGO design uses abstract graphics or shapes to represent companies or brands, such as the three diagonal lines of Adidas and the curve of Pepsi.
5. Combination Marks: This type of LOGO design combines letters, words and graphics to create a unique logo image, such as the logo of Burger King.
6. Dynamic Marks: this type of LOGO design can change with the change of time and environment, and take on different forms in different situations, such as MTV logo.
the above are the answers of zhonghui design (a professional logo design company). I hope I can help you.