He was a professor who authored over 100 scientific publications.

A prolific writer and artist, Riley authored over 2,400 publications.

He was awarded a doctor of economics degree and authored over 200 publications.

He has authored over 300 publications and books.

He has authored over 300 scientific publications and book chapters.

He has authored or coathored over 80 publications on dentistry.

He has also authored over 25 publications in scientific journals.

He authored over 50 publications and was recognized for his extensive work in gynecological cancer.

He has authored over 20 publications and written content for over 30 journals.

He is a licensed psychologist and has authored over two hundred publications including twelve books.