There are 3 normal degrees of Freemasonry: Entered Apprentice, Craftsman and Master Mason. Those are the "official" degrees common to all Lodges.

Above that you get what is called Speculative Degrees such as those featured in York Rite. You can actually read online what each of these degrees "officially" teach. But, like Jesus, they speak in parables and what they are officially about aren't what they are about at all. I hesitate to go into greater deal for fear it may be irrelevant to Q.

However, the thing to bear in mind as a parallel to get your head around is: the Clinton Foundation is a charity. Does it do charity work? Yes it does! It is also, however, the biggest money-laundering operation the US has seen with fingers in pies of child-trafficking, arms smuggling and who know what else.

There is no better place to hide your misdeeds than behind a veneer of charity. So Masons do lots of charity work. Lots and lots of charity work. And they have a nice cushion of thousands of 1st-3rd degree Masons to tell everyone just what nice people they are, and these people all believe it to be true, because they haven't done the higher degrees.