tricks of the trade

US /trɪks əv ðə treɪd/
UK /trɪks əv ðə treɪd/
"tricks of the trade" picture
1.

trucs du métier, ficelles du métier

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.
Il a appris tous les trucs du métier de son mentor.
Knowing the tricks of the trade can save you a lot of time.
Connaître les trucs du métier peut vous faire gagner beaucoup de temps.