IT IS AN ULTIMATE E_BOOK OF MAYA EXPRESSION EDITOR FROM BASIC UP-TO PROFESSIONAL LEVEL.
LESIONS:
lesion1. Introducing Expressions
lesion2. Quick Start
lesion3. Quick Start
lesion4. Editing Expressions
lesion5. Beyond the Basics
lesion6. Particle Expressions
lesion7. Functions
http://www.url-dead/file/2141087951/6567514-Maya-Tutorial-Expressions.pdf