Encompassing A Broad Range Of Forms And Sources Of Data, This Textbook Introduces Data Systems Through A Progressive Presentation. Introduction To Data Systemscovers Data Acquisition Starting With Local Files, Then Progresses To Data Acquired From Relational Databases,from Rest Apis And Through Web Scraping. It Teaches Data Formsformats From Tidy Data To Relationally Definedsets Of Tables To Hierarchical Structure Like Xml And Json Using Data Models To Convey The Structure,operations, And Constraints Of Each Data Form.the Starting Point Of The Book Is A Foundation In Python Programming Found In Introductory Computer Scienceclasses Or Short Courses On The Language, And So Does Not Require Prerequisites Of Data Structures, Algorithms,or Other Courses.