This series introduces users to Visual Basic 4.0, progressing from basic skills to more advanced tasks and skills. Basic skills covered in this series include using properties and controls, creating procedures, functions, statements, and variables, implementing menus and dialog boxes, and drawing in Visual Basic. Intermediate-level skills examined include creating graphical programs, creating tables, interfacing with Windows and the keyboard, and accessing, reading, and writing to files. The advanced skills covered include creating arrays, using OLE, the data control, SQL, and the Spin OLE control, creating Multiple Document Interface applications, and adding custom properties to a form.