The misconceptions and general lack of knowledge surrounding CT scans are astounding considering how often they are used on a daily basis by medical professionals when working to diagnose countless diseases and other issues in their patients. What in the World are CT Scans? seeks to inform its readers of the basics of the CT scan as well as how its use in the medical field has progressed and how it contributes to modern diagnoses. As shown in the table of contents, topics covered will range from its origins and inventors to potential future developments. In between, such topics as its mechanical components and how they produce scans as well as how these scans are used by medical professionals will also be explored. As it is important for readers to understand the CT scan in a modern context, misconceptions and the reality behind the public's fear of CT scans will also be examined. What in the World are CT Scans? is an in-depth exploration that strives to educate the general reader on the history, mechanics, and potential dangers of the CT scan.