Illustrator skills: overview

Adobe Illustrator CS5 (site)
Adobe Illustrator CS5 (pdf: ctl-click or right-click, then Save Link As...)

C01: Workspace
C02: Drawing
C03: Color
C04: Painting
C05: Selecting and arranging objects
C06: Reshaping objects
C07: Importing, exporting, and saving
C08: Type
C09: Creating special effects
C10: Web graphics
C11: Working with FXG
C12: Printing
C13: Automating tasks
C14: Graphs
C15: Keyboard shortcuts