„Christian Missions and Indian Assimilation“ was originally written as a Master thesis paper in Geography and was completed in 2001 at the Karl-Franzens-University in Graz, Austria. It is one of the most accurate and comprehensive books there are on Lakota history & culture as well as intercultural contact and its implications. Driven by the idea of culture clash and its consequences Andrea Schmidt was curious to find out how two seemingly so very different or even contradictory cultural and religious systems, the Oglala Lakota cultural system and the (European) system of Christian belief and mission, can exist, side by side, within the Lakota individuals, tribes and within the reservation. The contents of this book are based upon comprehensive field study and data collection at the Pine Ridge Indian Reservation for several months starting in 1999, accompanied by literary and historical research at the archives of Marquette University in Milwaukee, Wisconsin, and several other academic institutions including the Oglala Lakota College in Kyle, South Dakota. Things changed dramatically after 2001, when the paper first came out as a thesis paper; a lot of clergy left the reservation, missionaries seemed to be less active and less interested in Lakota culture than their predecessors. No such paper could have been written at any other point of time.