A Wordmark is basically the name of a brand that is designed with the input of unique typography. There are a lot of different type-styles to select from and the most common ones are script, sans-serif, and serif.
It is a good decision to use wordmark when you have a new business and the name of the business needs to get out there in the public. Wordmark logos are easy for customers to understand and relate to because of their simple style.
Some famous wordmark logo designs include Canon, Coca-Cola, Google, Disney, etc.