The textbook "Characterization, Demulsification and Transportation of Heavy Crude Oil" offers a comprehensive examination of the stability and properties of oil-in-water emulsions specifically designed for the transportation of heavy crude oil in pipelines. The authors, Abdurahman H. Nour, Chew Fern Tan, and Azhari H. Nour, analyze the use of viscous Malaysian crude oil, particularly the Tapis variety and a blend of Tapis and Masilla. The study highlights the various factors that influence the stability and properties of these emulsions and provides valuable insights for optimizing the transport of heavy crude oil. The results indicate that the stability of the emulsions is significantly affected by the concentration of the surfactant used, the mixing speed and duration, as well as the chemical properties of the aqueous phase. These findings are of great importance to professionals in the oil industry, as they can contribute to improving the efficiency and safety of heavy crude oil transportation.