Kirke is a Licensed Psychologist, Nationally Certified School Psychologist, and ANFT Certified Forest Therapy Guide who applies positive psychology, interpersonal neurobiology, and mindfulness. He consults internationally with schools, and health care organizations and is the author of The Invisible Classroom: Relationships, Neuroscience, and Mindfulness in School (WW Norton & Co.). He is President of GAINS (The Global Association for Interpersonal Neurobiology Studies) and with his wife Sher Kamman co-owner of The Positivity Company.