The document discusses a presentation on sentiment analysis using Power BI and Cognitive Services. The presentation agenda covers Power BI, DAX, Cognitive Services, why sentiment analysis, and references. DAX is described as a collection of functions useful for creating metrics in Power BI reports, including date, time, filter, information, logical, and math functions. Sentiment analysis is briefly mentioned as a topic to be discussed. References provided at the end include links to tutorials on text analytics with Power BI and the Text Analytics API, as well as links to download Power BI and learn more about the DAX Calculate function and a related GitHub project.