This is the 5044th most frequent Portuguese word.
lê
"Reads."
In this sentence, 'lê' is used as a verb in the third person singular present tense to denote the action of reading by 'he'.
Ele lê livros todos os dias.
He reads books every day.
Here, 'lê' is in the second person singular present tense (Brazilian informal) imperatively asking the listener to consider the act of reading.
Por que você não lê este artigo interessante?
Why don't you read this interesting article?
In this context, 'lê-se' is used in the reflexive passive voice to convey that the calm is interpreted (read) passively.