 Guamán Poma's discussion of Inca rule describes religion, social order, legislation, annual festivals and economic organization, as well as the functions of the different social groups.His narrative of Inca and pre-Inca times is often inaccurate according to modern understandings, but reflects how the Incas were remembered in the early colonial period, as well as Guamán Poma's distinctive ideas.Approximately half the book is dedicated to a description and harsh critique of Spanish colonial rule; scholars consider this section of the book as a uniquely valuable and reliable historical source.