read up on
US /riːd ʌp ɑːn/
UK /riːd ʌp ɑːn/

1.
ler sobre, estudar sobre
to read a lot about a subject, especially because you are going to do something connected with it
:
•
I need to read up on the history of the company before the interview.
Preciso ler sobre a história da empresa antes da entrevista.
•
She spent the weekend reading up on ancient Roman architecture.
Ela passou o fim de semana lendo sobre arquitetura romana antiga.