She was an international guest lecturer, and educator who has presented papers, led professional delegations, and conducted workshops in 14 countries throughout Europe and Asia.
[4] Kwiatkowska originated family art therapy and offered to train Wadeson at the National Institute of Mental Health (NIMH).
For eight years, Wadeson worked with patients with affective disorders, including mania, psychotic depression, and suicide risk.
[4] While at NIMH, she taught art therapy at the National Institutes of Health (NIH) Foundation for Advanced Education in the Sciences and at Montgomery Community College.
One of Wadeson's biggest contributions at the University of Illinois at Chicago was the “Annual Summer Institute”, which was held at Lake Geneva, Wisconsin.
[5] She believed it is important for art therapists to have a comprehensive knowledge of various human development and sociological theories to be most effective in working in diverse settings.
She stated that an eclectic approach allows the therapist to be open to possibilities and to use methods that best suit individual clients, groups, and communities.
[5] In 2012 Wadeson presented on her book "Journaling Cancer in Words and images" at Emporia State University's Art Therapy Discovery Day.