I will let you dowload AutoCAD Essential Training for $5

Topics include: * Understanding model space * Working in a multiple-document environment * Organizing drawings using layers * Creating basic geometry * Configuring units for architectural, civil, or metric work * Incorporating blocks (symbols) into a working file * Maintaining accuracy with coordinates and snaps * Creating annotations that automatically size themselves * Moving and copying elements * Transferring data between drawings * Preparing standardized layouts with title blocks * Sharing drawings.