The worksheets is (here)

Wikipedia outlining files types (here)

The YouTube videos can be found below

Autosketch Quick Start tutorial 1 outlining Toolbars, Line Types and Page Setup (here)

Autosketch Quick Start tutorial 2 outlining Scale and Drawing Options (here)

Autosketch Quick Start Tutorial 3 outlining Drawing Lines (here)

Autosketch Quick Start Tutorial 4 outlining Parts of Line (here)

Autosketch Quick Start Tutorial 5 outlining Snap (here)

Autosketch Quick Start Tutorials 6 outlining Border & NameBlock (here)

Autosketch Quick Start Tutorial 7 outlining OffSet (here)

You know what they say if you want to know how something works RTFM.

Karl Boeing Basic AutoSketch Manual (here)

The full Autosketch (10) Manual sections are below.

(1) Getting started (here)

(2) Create and trim entities (here)

(3) Create office layout dwg (here)

(4) Create a birdhouse drawing (here)

(5) Advanced exercises (here)