Dave Carl is a motivational speaker, author, blogger, and social worker. He was born with spina bifida, a condition where the spinal cord is not fully developed. Because of this, Dave is paralyzed from the waist down and has been in a wheel chair his entire life. He wrote the children's book, Super Cyclist. He has a bachelor's degree in Social Work and gives back to his community in huge ways. Dave is a certified ADA (American with Disabilities Act) Coordinator and he uses his knowledge to teach independent living classes to other physically and developmentally disabled adults.
http://www.supercyclist.com/