In a world that often excludes or overlooks the wealth of experiences and perspectives of individuals with disabilities, A Billion People in the Shadows emerges as a compelling exploration of the world's largest and most misunderstood minority group. With 15-20% of the global population living with disabilities, Doug McCullough's narrative delves into the profound impact of societal perceptions and self-imposed stigma on those facing all types of disability, including sensory, physical, intellectual, developmental, and mental health.

McCullough utilizes his journey with a degenerative neuromuscular disease (Spinal Muscular Atrophy) to candidly reveal the shame and marginalization often experienced by those in the disability community. Despite academic, professional, and social successes, McCullough wrestles with how to "show up" as a person with a disability. His turning point comes with the realization that the key to reshaping perceptions - both his own and others' - lies within himself. McCullough emphasizes this is a critical step individuals must make to live their best life, and asserts that self-doubt and low expectations can be more crippling than any disability.

McCullough concisely dissects and counters misconceptions routinely encountered by the disability community. Encouraging readers to broaden their view of disability, he establishes that disability is not a hindrance but a vibrant form of diversity, offering valuable skills and perspectives. That disability inclusion is not about being nice but being better. We are all in this life together, we all have abilities and challenges, and we all have a collective responsibility to uplift each other physically, mentally, and emotionally. McCullough calls for full inclusion rather than mere accessibility and provides practical insights on how society can better do this on multiple fronts to truly bring "a billion people out of the shadows."