Self taught,,,by working with professional photographers, books ect;  many mistakes and I have learn something from all of them..... I am knowledgeable  in pinhole photography,medium and large format.35mm....film and darkroom , digital....photoshop and lightroom programs....and over 30 years in photography......I take pride  in my photos and do the best work I know how,I will not sell a photos if I am not 100%  please with it........