Well, the law of the Church is called canon law. (Not "cannon.") So start from there. No need to buy the book - go to the library of a Catholic college, and they'll point you in the right direction. But yes, you will need to open a book.
all the laws of the catholic church? are you serious? you have to get out of the seminary to know all of them. Catholicism is more complicated than vector calculus.
The Catholic law takes a couple of years for a child to learn'
.
It is called the catechism
.
I got one here and it has 756 pages with the index subtracted
.
And its contents is like a law book in the second year of law in Harvard
.
Yes it is hard
.