Mapplethorpe's photos are definitely an acquired taste. He had formal training in art, but his photography was largely self taught. He got his BFA from the Pratt Institute in graphic design. For a long time, he did none of his own printing or developing, but had assistants and labs handle all that work. His lighting technique though was entirely his own. Actually, only a small portion of his total output would fall into what could be called "objectionable", especially by today's standards. In the early 80's, though, it was a bit more scandalous. He earned his basic paycheck doing portrait commissions, though, until his later years. There is a substantial body of his portrait work out there, but I don't recall if it has been compiled into a single volume.