HELP HELP HELP

[vianamusic]

Friends, I have good knowledge in electronics, but I know absolutely nothing about pedals, and here in my country, Brazil, this subject is not very widespread. I need help to get started, what to study, where to study, support materials such as websites and PDF's, because I want to build pedals for myself and friends. Could any child of God help me enter this incredible world of pedals? my email is [e-mail] you in advance!
PS, about the layouts I've seen of pedals on veroboard boards, I would like to better understand the connections of the switches, and potentiometers. Can anyone help me?

Denis Viana