The New Lakota Dictionary is the most modern and comprehensive volume of its kind to emerge in the last 75 years and serves as the benchmark for both the Lakota and Dakota languages in the 21st century. The volume is the result of 25-years of linguistic work with over 300 speakers from all the representative speech communities and the incorporation of all available Lakota and Dakota textual resources. The dictionary represents the language with complete historical and contemporary accuracy within the encompassing Northern Plains region including: Minnesota, North Dakota, South Dakota, and Nebraska.