- eBookHDR projects COACHGerhard Middendorf
- eBookBLACK & WHITE projects 6 COACHGerhard Middendorf
- eBookSHARPEN projects 2018 COACHGerhard Middendorf
- eBookHDR projects 2018 COACHGerhard Middendorf
- eBookDENOISE projects 2 COACHGerhard Middendorf
- eBookCOLOR projects 6 COACHGerhard Middendorf
- eBookSerien: CoachMichael Gradias