 Polypropylene, PP, nanocomposites have been widely investigated over the past decade due to their enhanced mechanical, thermal, electrical, optical and structural properties. These improvements are attributed to the unique combination of structural, mechanical, electrical and thermal transport properties of carbon nanotubes, CNTs. Despite the potential benefits of these composites, there is still much to learn about how they behave under different conditions. This paper provides a comprehensive review of the existing literature related to PP slash CNTs nanocomposite preparation methods and property studies. This article was authored by Demetrius Baikiaris.