About

MarvinDavid Speller  (CoachM100) is a published author, an authorized Oil & Energy Mandate, and a Transformational Health Coach and Grief Advocate working across mental health, business consulting, and strategic facilitation. With over 30 years as an operational leader, educator, coach, and implementation specialist, Marvin has supported hundreds of individuals through personal and professional breakthroughs, helping them strengthen self-care, resilience, and lasting coping skills. 

In addition to his private consulting and paid programs, Marvin and his late wife Kristen co-founded non-prophits, From Here to There, Man UP, and Glam UP programs, serving domestic violence survivors and the unhoused transition into the community through health, wellness, and healing-centered initiatives. 

Speller is a passionate writer who draws from personal experiences of loss. His insights into grief and healing provide a unique perspective that resonates with many readers seeking solace.