Osteogenesis imperfecta(OI), also known as brittle bone disease, is a genetic disorder of connective tissue characterized by bones that fracture easily, often from little or no apparent trauma.  For people with osteogenesis, interacting with the health care system can be complicated and time consuming.  Frequently, people with OI require the services of several health care providers in settings from physicians offices to the emergency room of the hospital and medical research facilities.  In recent years, a great deal of new research has been derived from worldwide interest in bone and genetic research.  This progress is changing in many ways how we understand OI and is leading to expanding treatment options.  This is a rare disorder that many are not familiar with from a clinical setting, and this home study provides and introduction to OI and serves as a reference tool for the health care provider.