tricks of the trade
US /trɪks əv ðə treɪd/
UK /trɪks əv ðə treɪd/

1.
macetes do ofício, segredos da profissão
clever methods or special techniques used by people in a particular profession or activity, often not widely known
:
•
He learned all the tricks of the trade from his mentor.
Ele aprendeu todos os macetes do ofício com seu mentor.
•
Knowing the tricks of the trade can save you a lot of time.
Conhecer os macetes do ofício pode economizar muito tempo.