K. J. Carleo is the author of It Is Up To YOU: A Journey of Stoic Spirituality, Cast Your Light, The Goodest Boys, and Judgment. His work explores the intersection of Stoic philosophy, spiritual psychology, moral responsibility, and the transformative power of love — expressed through both contemplative nonfiction and deeply personal narrative.

A retired U.S. Marine Corps Gunnery Sergeant, Carleo brings more than two decades of leadership and service into his writing. His books challenge readers to move beyond blame, reclaim inner authority, and live with disciplined compassion. Drawing inspiration from classical Stoicism, contemporary spiritual thought, and lived experience, he writes about self-mastery, perception, forgiveness, and character formation in modern life.

While It Is Up To YOU offers a structured 365-day apprenticeship in Stoic spirituality, Cast Your Light serves as a philosophical companion for personal awakening, Judgment examines the power of perception and responsibility, and The Goodest Boys reveals the depth of unconditional love through the lens of companionship and loss.

Carleo writes at the convergence of philosophy and lived experience, inviting readers into practical resilience, ethical clarity, and courageous self-leadership. He lives in Texas and continues to write and speak on character, responsibility, and service as the foundation of authentic leadership.