Superlative Adjectives

Superlative adjectives express the greatest increase or decrease of the quality; it conveys the supreme value of the noun in question. 

For instance, 'He is the richest man in this town'. Here, the word 'richest' is the superlative adjective which shows a comparison individually.

•     Mary is the tallest of all the students.
•     I am in the smallest class in the school.
•     This is the most interesting subject for me.