The book entitled "Rheology of soaps and detergents" is structured in 4 chapters. Chapter 1 contains the general characteristics of soaps as well as their classification according to their composition. Chapter 2 covers the general characteristics of detergents, their production history and their composition. Chapter 3 covers the rheological characteristics of sodium, lithium, aluminum soaps mixed with oil. The rheological behavior of these soaps under certain conditions of temperature and pressure.Chapter 4 includes the rheological characterization of detergents as well as their behavior under certain conditions of temperature and pressure.