Cancer is a leading cause of death worldwide. More than 10 million people die each year from this disease, but many cancers can be cured if detected early and treated effectively. In fact, the overall cancer survival rate has improved significantly since 1991 with the hard work of physicians and researchers, improved testing and screening technology, and lifestyle changes by those who are at greatest risk from the disease. Despite these positive trends, many people view cancer as a scary disease and have many misconceptions about the causes, treatments, and outcomes for those with cancer. Childhood Cancers explores common types of childhood cancers (e.g., blood and immune system cancers, nervous system tumors); causes of childhood cancers and risk factors; and diagnostic, treatment, and prevention methods. It also discusses the social and emotional issues experienced by young people who have cancer, and the various counseling professionals (e.g., child life therapists, psychologists, art therapists) who help patients. Understanding Cancer provides a fact-based examination of the various types and causes of cancer, treatment options (including emerging approaches such as gene therapy), methods of reducing the risk of being diagnosed with cancer, and how to care for loved ones with cancer. Stories of those who are battling cancer, as well as their caregivers, are also featured in the series in order to humanize this disease.