If you would like to learn Adobe Illustrator CS then watching these video tutorials is the easiest way.
To view the Free Tutorials listed below, you must have QuickTime installed.
Using the Keyboard pt. 1
Using the Keyboard pt. 2
The Workspace
The Toolbox
Managing Palettes pt. 1
Managing Palettes pt. 2
Entering Values pt. 1
Entering Values pt. 2
Paths
Line Segments
The Pen Tool
Drawing Curves
Smooth and Corner Points
Editing Paths
Compound Paths
Optimum Curves
Rules for Optimum Curves
Selecting
Primary Selection Tools
Magic Wand Tool
Lasso Tool
Select Menu pt. 1
Select Menu pt. 2
The Bounding Box and Edges
Grouping
Hiding and Locking
Moving pt. 1
Moving pt. 2
Rotating
Scaling
Shearing and Reflecting
Transform Palette
Using Transform Each
Free Transform Tool
Reshape Tool
Liquification Tools pt. 1
Liquification Tools pt. 2
Align Palette Pt. 1
Align Palette Pt. 2
Transform Shortcuts
Cloning
Type Fundamentals
Point Type Tool
Character Palette pt. 1
Character Palette pt. 2
Typography Shortcuts
Area Type
Every-Line Composer
Justification Settings
Tabs and Leaders
No Break and Open Type
Color and Outline Type
Productivity
Navigator Palette
Document Info Palette / Hiding the Artboard
Rulers
Guides
Smart Guides
Snapping To and Saving Views
Application Preferences pt. 1
Application Preferences pt. 2
Application Preferences pt. 3
Info Palette and Measure Tool
Layers
Clipping Masks
Layers Palette
Palette Options
Layer Options
Rearranging pt. 1
Rearranging pt. 2
New Object Targeting
Dupe / Merge / Flatten
Collect and Release
Better Mask Management
Advanced Type
Text Wraps
Type on a Path pt. 1
Type on a Path pt. 2
Advanced Area Type
Threaded Text
Find and Replace and Spelling
Legacy Text
Type Menu Potpourri
Visual Attributes
Stroke Palette
Gradient Tool and Palette
Swatch Palette Views
Global Colors
Custom Patterns
Spot Colors and Merging
Custom Swatch Libraries
Overprinting
Brushes
Brush Tool and Palette
Calligraphic Brushes
Art Brushes
Scatter Brushes
Pattern Brushes
Special Tools
Paintbucket and Eyedropper Tools
Graph Tool
Gradient Meshes pt. 1
Gradient Meshes pt. 2
Blends
Auto-Tracing
Pathfinder Palette
Envelope Distort
Path Menu
Scissor and Knife Tools
Appearances and Styles
Appearance Palette
Editing Appearances pt. 1
Editing Appearances pt. 2
Appearances in the Layers Palette
Graphic Styles Palette
Expanding